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Showing 1 – 29 of 29 results.
Curated

Best Practices to Reduce COVID-19 in Group Homes for Individuals with Serious Mental Illness and Intellectual and Developmental Disabilities, Massachusetts, 2021-2022 (ICPSR 39404)

Released/updated on: 2025-09-18
Geographic coverage: United States, Massachusetts
Time period: 2021-01-01--2022-01-01

The overall goal for this project was to reduce the incidence of COVID-19, hospitalization, and mortality among adults with serious mental illness (SMI) and intellectual disabilities/developmental disabilities (IDD) in congregate living settings (i.e., group homes) in Massachusetts, as well as to reduce COVID-19 incidence among staff who work in these settings. The research team was guided by two comparative effectiveness questions:

  1. With the goal of prioritizing and making actionable best practices available as resources, what is the comparative effectiveness of various types and intensities of preventative interventions (e.g., screening, isolation, contact tracing, hand hygiene, physical distancing, use of face masks) in reducing rates of COVID-19, related hospitalizations, and related mortality in this population?
  2. With the goal of effectively implementing best practices, what is the most effective implementation strategy to reduce rates of COVID-19 in this population: using tailored best practices (TBP) with SMI/IDD residents and staff of group homes in mind, or general best practices (GBP) from state and federal standard guidelines for all congregate care settings?

The specific aims of this study were as follows:

Aim 1a. Synthesize existing baseline data collected by 6 state behavioral health agencies on COVID-19 rates, hospitalization, mortality, and use of infection prevention practices.

Aim 1b. Collect stakeholder input via surveys and virtual focus groups on staff and resident experiences and on barriers/facilitators to implementing recommended preventative practices.

Aims 2a and 2b. Determine the comparative effectiveness of various COVID-19 preventative practices by (Aim 2a) using a validated simulation model to estimate COVID-19 spread in group homes and (Aim 2b) obtaining stakeholder input on prioritizing and defining tailored best practices for implementation.

Aim 3. Compare the effectiveness of TBPs with GBPs by using a hybrid effectiveness-implementation cluster randomized controlled trial.

Data collected to answer Aims 1 and 2 served as the foundation for designing the Aim 3 trial. Data for the trial were collected in 3-month intervals beginning January 2021 (baseline) until October 2022 (15-month follow-up). Residents and staff were sampled from approximately 400 group homes. Primary implementation outcome measures were COVID-19 vaccination rates and fidelity scores. The primary effectiveness outcome measure was COVID-19 infection.

Notes: This collection contains only data from Aim 1a and Aim 3. Throughout the data and documentation, "intellectual and/or developmental disabilities" is abbreviated as both IDD and ID/DD.

Curated

British Social Attitudes Survey, 1995 (ICPSR 3098)

Released/updated on: 2006-07-26
Geographic coverage: Great Britain, Global
This survey is part of a continuing series designed to monitor trends in a wide range of social attitudes in Great Britain. The British Social Attitudes Survey (BSA) is similar to the General Social Survey carried out by the National Opinion Research Center (NORC) in the United States. The BSA questionnaire has two parts, one administered by an interviewer and the other completed by the respondent. As in the past, the 1995 interview questionnaire contained a number of "core" questions covering the major topic areas of defense, the economy, labor market participation, and the welfare state. The 1995 self-enumerated questionnaire was devoted to a series of questions on a range of social, economic, political, and moral issues. Topics covered (by section) are: (1) newspaper readership and identification, (2) public spending, welfare benefits, and health care, (3) economic activity, labor market, training, and disabled people, (4) fear of crime, (5) constitutional issues, (6) education, (7) drugs, (8) Northern Ireland, (9) housing, (10) religion and ethnic origin, (11) classification, (12) countryside, the environment, and transportation, (13) taste and decency, (14) economic prospects, (15) taxation and public spending, (16) charitable giving, (17) welfare/Social Security, (18) euthanasia, and (19) pensions. An international initiative funded by the Nuffield Foundation, the International Social Survey Program (ISSP), also contributes a module to the BSA. The topic of the ISSP module in this collection was national identity. Additional demographic data included age, education, income, marital status, and religious and political affiliations.
Curated
Simple Crosstabs

Canadian COVID-19 Response Survey of People with Disabilities and Health Conditions, 2020, 2021 (ICPSR 38875)

Released/updated on: 2023-10-16
Geographic coverage: Canada
Time period: 2020-06-11--2020-06-22, 2021-07-15--2021-07-31
The Canadian COVID-19 Response Survey of People with Disabilities and Health Conditions was administered to obtain a sample of people with disabilities and health conditions across 10 Canadian provinces and their views on government response to the COVID-19 pandemic.
Curated

Candidate Countries Eurobarometer 2002.1, March-April 2002: Social Situation in the Countries Applying for European Union Membership (ICPSR 29361)

Released/updated on: 2011-01-20
Geographic coverage: Romania, Cyprus, Hungary, Europe, Global, Malta, Czech Republic, Latvia, Turkey, Poland, Slovenia, Slovakia, Bulgaria, Lithuania, Estonia
Time period: 2002-03-01--2002-04-05
The Candidate Countries Eurobarometer (CCEB) series, first conducted in 2001, gathers information from the countries applying to become members of the European Union (EU) in a way that allows direct comparison with the standard Eurobarometer series carried out in the existing EU countries. The CCEB provides decision-makers and the European public with opinion data on the similarities and differences between the EU and candidate countries. The CCEB continuously tracks support for EU membership in each country and records changes in attitudes related to European issues in the candidate countries. This round of the CCEB survey was conducted between March 1 and April 5, 2002, in the candidate countries: Bulgaria, Cyprus, Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Romania, Slovakia, Slovenia, and Turkey. The survey first asked respondents three questions in regard to European Union membership. In addition to these questions, respondents were queried on the following major areas of focus: (1) quality of life indicators and life satisfaction, (2) family and children, (3) elderly people, (4) lifestyle and health , (5) access to and quality of social services, (6) household income and standard of living, (7) social protection, inclusion, and exclusion, (8) social and political participation and integration, (9) employment, unemployment, and quality of work, and (10) regional mobility. For the first major area of focus, quality of life indicators and life satisfaction, respondents were questioned about life satisfaction in the past, present, and near future, and particular factors which contribute to or improve their present quality of life. For the second major area of focus, family and children, respondents provided their views in regard to the ideal number of children for a family, decision-making in having a child, age at birth of first child, parental and family roles, and the role of government in improving life for families with children. For the third major area of focus, elderly people, respondents gave their opinion on who should care for elderly persons, as well as who should pay for their care. The survey also asked respondents whether they cared for an individual who has a long-term illness, or who is handicapped or elderly, in-home or outside the home. For the fourth major area of focus, lifestyle and health, respondents were queried about their current lifestyle and whether they had any long-term illness and/or handicap that limits their activities in any way. For the fifth major area of focus, access to and quality of social services, respondents provided feedback about their distance from a particular service or business, their satisfaction with the health and social services in their country, and whether the local or national government, private companies, or associations should provide certain services. For the sixth major area of focus, household income and standard of living, questions asked of respondents included the lowest net monthly income level their household would need in order to make a living, their appraisal of the current household income situation, whether any household member had difficulties in paying the bills, and their ability to save and invest. The survey also queried respondents about their current standard of living, and whether and how they are improving their standard of living. For the seventh major focus, social protection, inclusion, and exclusion, respondents provided their ideas about necessities of the good life, their opinion as to whether they could rely on anyone outside the home for certain problems, and their views on social exclusion, poverty, and the state of the area in which they live within their country. In addition, the respondents were asked about their response to the poor or socially excluded, which entities provide the most help to these individuals versus who should do so, the reasons why people are poor or socially excluded, as well as the extent of social disparities in their country and government's role in reducing these disparities. For the eighth major area of focus, social and political participation and integration, respondents were asked about their participation in social, community, political, and advocacy groups or organizations. For the ninth major area of focus, employment, unemployment, and quality of work, the survey queried respondents about their current and past employment, employment status, and to describe their job. In addition, respondents identified the average hours they worked per week and stressors arising from their current job situation. For the last major area of focus, regional mobility, respondents were asked about moving in the last ten years, including how often, where, and why or why not, the prospects of moving to a different location in the next five years, the factors that would influence relocation, and whether moving would improve job prospects. In addition, the survey queried respondents about their willingness to live in another European country where the language spoken differs from their native language. Demographic variables include age, gender, marital status, age when stopped full-time education, occupation, income, source of household income, main income earner, number of people living in the household, ownership of durable goods, type and surface of area residence, type of community, and region of residence.
Curated

Census of Population and Housing, 2000 [United States]: Demographic Profile: 100-percent and Sample Data (ICPSR 13286)

Released/updated on: 2008-05-08
Geographic coverage: North Carolina, Indiana, Wyoming, Utah, Arizona, Montana, Kentucky, California, Kansas, Florida, Delaware, Pennsylvania, Mississippi, Iowa, Illinois, Texas, Connecticut, Georgia, Virginia, Maryland, Idaho, Oregon, Vermont, Puerto Rico, United States, Oklahoma, Tennessee, Maine, Alabama, Arkansas, Washington, South Carolina, Nebraska, West Virginia, Massachusetts, Colorado, Missouri, Alaska, North Dakota, Wisconsin, Nevada, District of Columbia, Rhode Island, South Dakota, Hawaii, Minnesota, New York (state), New Jersey, Michigan, New Mexico, New Hampshire, Louisiana, Ohio

This data collection contains four tables derived from the Census 2000 100-percent and sample data:

  • Table DP-1. Profile of General Demographic Characteristics

  • Table DP-2. Profile of Selected Social Characteristics

  • Table DP-3. Profile of Selected Economic Characteristics

  • Table DP-4. Profile of Selected Housing Characteristics

The 100-percent data were obtained from the questions asked of every person and housing unit enumerated in Census 2000, while the sample data were taken from the questions asked of a sample of persons and housing units. Tabulated from the 100- percent data, Table DP-1 shows population counts by sex, age, race, Hispanic origin, and relationship to householder, plus the group-quarters population, households by type, housing occupancy and tenure, and average household size. Tables P-2, DP-3, and DP-4 were derived from the sample data. Table DP-2 covers school enrollment, educational attainment, marital status, grandparents as caregivers, veteran status, disability status, residence in 1995, nativity and place of birth, language spoken at home, and ancestry. Next, Table DP-3 covers employment status, commuting to work, occupation, industry, class of worker, and income and poverty status in 1999. The last table, DP-4, shows the number of housing units by type of structure and number of rooms in unit, year structure was built, year householder moved into unit, number of vehicles available, type of house heating fuel, occupants per room, value of owner-occupied units, gross rent, and mortgage status and selected monthly owner costs, as well as the number of homes without complete plumbing facilities, complete kitchen facilities, or telephone service.

Supplied in a national file and separate state files including the District of Columbia and Puerto Rico, the data cover more than a dozen geographic levels of observation known as "summary levels" in the Census Bureau's nomenclature. The national file comprises eight summary levels: United States, regions, divisions, Metropolitan Statistical Areas/Consolidated Metropolitan Statistical Areas, Primary Metropolitan Statistical Areas, American Indian Areas/Alaska Native Areas/Hawaiian Home Lands, states, and the 106th Congressional Districts. Ten summary levels are reported in the state files: state, counties, county subdivisions, places, consolidated cities, Metropolitan Statistical Areas/Consolidated Metropolitan Statistical Areas, Primary Metropolitan Statistical Areas, American Indian Areas/Alaska Native Areas/Hawaiian Home Lands, Alaska Native Regional Corporations, and the 106th Congressional Districts.

The data are provided in 53 ZIP archives: one for each state and one with the national file. Each of these archives comprises four comma-delimited ASCII data files (one per table) and a ZIP archive with the tables in PDF format. The embedded ZIP archive contains a separate PDF file for each iteration of every summary level, an HTML file with an index and links to the PDF files, and a folder with Graphic Interchange Format (GIF) image files which are used by the HTML document.

Curated

County Characteristics, 2000-2007 [United States] (ICPSR 20660)

Released/updated on: 2008-01-24
Geographic coverage: United States
Time period: 2000-01-01--2007-01-01
This file contains an array of county characteristics by which researchers can investigate contextual influences at the county level. Included are population size and the components of population change during 2000-2005 and a wide range of characteristics on or about 2005: (1) population by age, sex, race, and Hispanic origin, (2) labor force size and unemployment, (3) personal income, (4) earnings and employment by industry, (5) land surface form topography, (6) climate, (7) government revenue and expenditures, (8) crimes reported to police, (9) presidential election results (10) housing authorized by building permits, (11) Medicare enrollment, and (12) health profession shortage areas.
Curated

Eurobarometer 54.2: Impact of New Technologies, Employment and Social Affairs, and Disabilities, January-February 2001 (ICPSR 3211)

Released/updated on: 2008-08-14
Geographic coverage: Europe, United Kingdom, Portugal, Global, Spain, Greece, Netherlands, Sweden, Austria, Belgium, Norway, Luxembourg, Ireland, Finland, Denmark, Italy, France, Germany
Time period: 2001-01-02--2001-02-06
This round of Eurobarometer surveys diverged from a focus on standard Eurobarometer measures, and instead assessed respondents' views on the perceived impact of new technologies, employment, moving, and issues related to people with disabilities. Interviews began by asking respondents if they felt important changes in the world were impacting them personally, how they felt about these changes, and what the impact of new technologies would be over the next five to ten years in terms of their daily lives, access to information, free time, feelings of security, risk of accidents, household chores, family and social relationships, and deterrence of criminal activities. They were asked how much they agreed that new technologies would reduce income inequalities, differences in educational and cultural opportunities, and the number of people excluded from society, as well as improve people's participation in the political process, create more possibilities for expressing one's opinions, provide more access to political representatives and the civil service via the Internet, and promote on-line voting for elections and referenda. Responses were also sought regarding who respondents felt benefited most from the Internet, if they had concerns about voting on-line, and who should deal with new ethical issues brought about by new technologies. Respondents were further questioned about whether they thought that over the next five to ten years people in general would undertake more or less work-related training, experience more or less work-related stress, change jobs more or less than today, work more or less hours per week, retire earlier or later, and what impact new technologies would have on employment opportunities. They were asked to what extent they agreed that it was necessary to master new technologies to find or keep a job, that the educational system taught new technology effectively, and that all pupils should have full access to new technologies, as well as who they thought should pay for work-related training on new technologies. Respondents with a job were asked how satisfied they were with their job in terms of earnings, job security, type of work, number of working hours, start and end times, length of travel time, how many times they had changed jobs in the last five years, how similar the skills required for their current job were to their previous job, and the reason for changing jobs. Those who thought they would change jobs in the next five years were asked if they thought the required skills would be similar or different and what would encourage them to make the change. Those who hadn't changed jobs in the last five years or didn't plan to change jobs in the next five years were asked why. All respondents with a job were also asked if they thought they would need new skills to improve future job prospects, if in the last year they had participated in training to improve their skills, and why they wanted or didn't want to improve their job skills. Respondents were next asked if they had moved in the last ten years or if they intended to move in the next five years. Those who had moved or intended to move were asked where, i.e., within the same city, different city-same region, different region-same country, different European Union (EU) country, or outside of the EU, and the reason for the move. Those not having moved and not intending to move were asked why not. All respondents were asked whether they would prefer to remain in their current region of residence or move to another region if they were unemployed, to what extent moving to a different geographical location in the next five years would improve their job prospects, if they would be willing to live in another EU country with a different language, how they felt about the number of foreigners in their country, and whether better career prospects, financial circumstances, social benefits, public services, or social life would encourage them to move. On the subject of the disabled, respondents were asked if they personally knew anyone (including a family member, friend, acquaintance, neighbor, colleague, client, pupil/student, or other) with a disability or infirmity that limited their activities, how at ease they felt in the presence of people with disabilities, and how at ease people in general felt in the presence of people with disabilities. They were asked how difficult they thought it was for certain groups of people with disabilities (i.e., blind, deaf, physically and intellectually disabled people) to access public transport and services, restaurants, university or school, their work place, sports events, and cultural events, whether access to public places for people with disabilities had improved over the last ten years, who was actually responsible for making improvements in these matters (e.g., local authorities, national government, nongovernmental organizations, the EU, etc.), and who should be responsible. They were asked to indicate how aware they were of each of 21 types of disabilities (e.g., visual, hearing, neuromuscular, skeletal, arthritis, cancer, Alzheimer's disease, Parkinson's disease, and others), what percent of the population in their country had a physical disability, how strongly they agreed that disabled persons should be more involved in society, that more money should be spent on removing physical barriers, and that children with disabilities should be taught in the same schools as other children, and whether they would feel at ease with a person in a wheelchair as their boss, next-door neighbor, colleague, a politician, an artist, a teacher, or a shop worker. Standard demographic information collected includes age, sex, occupation, nationality, marital status, vote intention, age at completion of full-time education, number of people in household, number of children under 15 in household, household income, size of locality, region of residence, religiousity, and language of interview (for select countries).
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Eurobarometer 60.0: Consumer Rights, Data Protection, Education Through Sport, Product Safety, E-Commerce, Attitudes Towards People With Disabilities, and the Euro, September 2003 (ICPSR 3951)

Released/updated on: 2010-06-14
Geographic coverage: Europe, Northern Ireland, Portugal, Global, Spain, Greece, Netherlands, Sweden, Great Britain, Austria, Belgium, Luxembourg, Ireland, Finland, Denmark, Italy, France, Germany
Time period: 2003-09-01--2003-09-30
This round of Eurobarometer surveys diverged from the standard trends questions, instead focusing on public opinion in the following major areas: consumer rights, personal data protection, education through sport, product safety, e-commerce, persons with disabilities, and national currency. Respondents were asked about opportunities to settle disputes with a seller or service provider including actions taken to settle dispute and type of product or service. A number of questions asked regarded the current justice system including the respondents' level of trust in the system, areas that need improvement, and what resources are available to protect consumer rights. Respondents were also asked about whether they were concerned with the privacy of their personal data. Questions sought the respondents' level of trust in national organizations, opinion of what data protection laws should entail, and whether they had used tools or technology to protect personal data. Respondents were also asked about their participation in sports activities. Questions included how often they perform recreational activities, where they exercise, what are the benefits and values of sports, and what are the anticipated outcomes due to the negative aspects of sports. Regarding safety instructions, respondents were asked if they purchase domestic electrical appliances. A number of questions focused on product safety information. Respondents were asked whether they read and obey the information provided on the product, whether the information impacted their purchase and/or use of the product, and the most effective way to provide product instructions. Several questions asked the respondent to recognize safety symbols labeled on the product, the symbol's effectiveness, and whether it impacted their purchase decision. Respondents were also asked whether they purchased products on the internet, how often, concerns regarding their internet transactions, why they purchased online, and from what Web sites they purchased. Other questions asked regarded the security of internet transactions including the respondents knowledge of consumer rights, internet security, protection laws concerning internet purchases, who they contacted if help was needed, and their past experience with complaints on internet transactions. Respondents were also asked questions about persons with disabilities including knowledge of European programs for persons with disabilities, their knowledge of various types of disabilities, and their view of persons with disabilities. Lastly, respondents in the euro-zone, were asked questions that pertained to national currency including how pleased they were with the establishment of the Euro as the universal currency. Demographic and other background information collected includes respondents' age, gender, marital status, nationality, left-right political self-placement, age at completion of education, occupation, household income group, type and size of locality, and region of residence.
Curated

Evaluation of Violence Against Women With Physical Disabilities in Michigan, 2000-2001 (ICPSR 3414)

Released/updated on: 2006-03-30
Geographic coverage: United States, Michigan
Time period: 2000-01-01--2001-01-01
In the past few years it has become alarmingly clear that women with disabilities are at an extremely high risk for emotional, sexual, and physical assault. The Developmental Disabilities Institute at Wayne State University, in collaboration with the United Cerebral Palsy Association in Michigan, conducted a one-year study to investigate the prevalence and correlates of, and service system capacity related to, domestic abuse among women with physical disabilities in Michigan. The study aimed to address the following research questions: (1) What is the prevalence of domestic violence among a sample of women with physical disabilities? (2) What potential factors for domestic violence exist among women with physical disabilities? and (3) What is the capacity of existing support programs (e.g., safe houses, shelters, and service agencies) to assist women with physical disabilities? The population for this study was women over the age of 18 who had physical disabilities. Consistent with the work of other researchers, physical disabilities in this study were defined as those disabilities that result in functional impairment, such as cerebral palsy, post-polio syndrome, spina bifida, amputation, rheumatic conditions, multiple sclerosis, spinal cord injury, traumatic brain injury, visual impairment, hearing impairment, and stroke. A sample of 177 women was recruited through several mechanisms. To address the question of domestic abuse prevalence, the women participating in the study were first asked to complete a brief questionnaire addressing demographic characteristics and their experience with domestic violence (Part 1, Screening Interview Data). Fifty-six percent (100) of the 177 women interviewed indicated a positive history of abuse at their initial screening. In order to address the second research question about the correlates of abuse, this subsample of 100 women was invited and encouraged to participate in the second phase of the research, which involved a more extensive interview (Part 2, Abuse Interview Data). The interview used was based on a protocol developed by Nosek (1995) that addressed demographic characteristics, social networks, and abuse history. Variables in Parts 1 and 2 include type of disability, type of personal assistance needed, and whether the respondent was ever physically, emotionally, or sexually abused. Part 2 also contains variables on sources of monthly income, who perpetrated the abuse, the abuser's gender, how long the victim knew the abuser, whether the victim sought assistance from a domestic violence program or shelter, and a description of the worst incident of physical abuse. Demographic variables in Parts 1 and 2 include ethnicity, age, employment status, and marital status.
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Examining Criminal Justice Responses to and Help-Seeking Patterns of Sexual Violence Survivors with Disabilities, United States, 2008-2013 (ICPSR 36431)

Released/updated on: 2018-08-14
Geographic coverage: United States
Time period: 2008-01-01--2013-01-01

These data are part of NACJD's Fast Track Release and are distributed as they are received from the data depositor. The files have been zipped by NACJD for release, but not checked or processed except for the removal of direct identifiers. Users should refer to the accompany readme file for a brief description of the files available with this collection and consult the investigator if further information is needed.

This mixed methods study examined the criminal justice outcomes and help-seeking experiences of sexual assault survivors with disabilities. The specific objectives of this study were to:

  • Describe criminal justice reporting of sexual assault against persons with disabilities (e.g., number and source of reports, characteristics or survivors and perpetrators, case characteristics, and case outcomes)
  • Assess how cases of sexual assault survivors with disabilities proceeded through the criminal court system.
  • Describe help-seeking experiences of sexual assault survivors with disabilities from formal and informal sources, including influences on how and where they seek help, their experiences in reporting, barriers to reporting, and outcome of this reporting, drawn from interviews with community based survivors and service providers.

The study contains one data file called 'Data_Sexual Violence Survivors with Disabilities.sav'. This file has 26 variables and 417 cases.

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Functional Independence in Children at a Pediatric Clinic in Guanajuato, Mexico, 2004-2013 (ICPSR 37068)

Released/updated on: 2018-07-09
Geographic coverage: Mexico, Guanajuato
Time period: 2004-01-26--2013-05-13

This study sought to evaluate the functional independence in children at a Centers for Pediatric Rehabilitation Teleton (CRIT) facility in Guanajuato, Mexico through the use of the WeeFIM Instrument (0-3 Module). The dataset in this collection was generated in May 2013 from electronic health records for secondary analysis of de-identified data. The goal of CRIT, that this research sought to evaluate, was to improve social integration for children with disabilities in Mexico through comprehensive rehabilitation services, including physical therapy, occupational therapy, neurotherapy, speech therapy, physical and rehabilitation medicine, psychology, social integration, and school for parents.

The collection includes one dataset (35 variables, 5,993 cases). Demographic variables included in the collection: Age, gender, and city of residence.

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Impact of WHO's 8-step Wheelchair Service Provision in Indonesia, 2013-2014 (ICPSR 37093)

Released/updated on: 2018-07-24
Geographic coverage: Indonesia
Time period: 2013-01-01--2014-01-01

The Impact of the World Health Organization's (WHO) 8-step Wheelchair Service Provision in Indonesia, 2013-2014 includes data collected in Indonesia by United Cerebral Palsy (UCP) Wheels for Humanity and the University of Pittsburgh. The purpose of this study was to investigate how wheelchairs provided to individuals with mobility impairments related to mobility, participation in society, quality of life, wheelchair skills, wheelchair maintenance, and satisfaction with mobility as compared to a control group.

The dataset includes: age, gender, diagnosis/type of disability, type of wheelchair and use of a wheelchair. Additionally, data includes the following outcome measures: Wheelchair Skills Test, the Wheelchair Assessment Checklist (WAC), the Craig Handicap Assessment Recording Technique Short Form (CHART), World Health Organization Quality of Life-BREF (WHOQOL-BREF) and Functional Mobility Assessment (FMA). The CHART (short form) was designed to provide a simple measure of involvement in life situations and is the most widely used participation measure in rehabilitation research. The 5-item Satisfaction with Life Scale is a global measure of life satisfaction. The Wheelchair Skills Test Questionnaire is used to measure a person's skill in using their wheelchair, such as their capability of putting on brakes, propelling a straight distance, and doing a reaching task from their wheelchair. The Wheelchair Skills Test has been shown to be a safe, valid and reliable method to objectively assess the skills of wheelchair users.

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Language Development of Non-verbal Children Age 3 Years through 7 Years, 2007 to 2012 [Kansas City Metro Area] (ICPSR 36472)

Released/updated on: 2016-10-25
Geographic coverage: Kansas City (Kansas), Kansas
Time period: 2007-01-01--2012-01-01

The Language Development of Non-verbal Children Age 3 Years through 7 Years in the Kansas Metro Area is one of the three projects in the Communication of People with MR, 2006 to 2012 Series, which focuses on identifying participant variables that predict success in increasing communication skills of individual with intellectual disabilities. Data for Dataset 1 of this study were collected to illustrate how acquisition of symbolic communication using Voice Output Communication Aid (VOCA) affects the development of successful communication exchanges. For the data collection of Dataset 1, children were recruited by contacting school districts in and near the Kansas City metropolitan area, specifically, in Topeka, Kansas, and Wichita, Kansas. Teachers and speech-language pathologists were asked to nominate any children meeting specific criteria. The 93 children who were enrolled were administered the Mullen Scales of Early Learning and the Preschool Language Scale. A structured play assessment was also administered.

Subsequently, data for Dataset 2 was collected to analyze and compare 19 Spanish-speaking children to the original sample. Both data files contain the results of Complexity of Communication Scale, a measure developed by the Communication of People with MR project.

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Medicare Health Outcomes Survey (HOS), 1998-2014 (ICPSR 23380)

Released/updated on: 2016-05-26
Geographic coverage: Puerto Rico, United States, Guam, Virgin Islands of the United States
Time period: 1998-01-01--2014-01-01
The Medicare Health Outcomes Survey (HOS) is the first patient reported health outcomes measure for the Medicare population in managed care settings. It is a continuous study that measures the physical and mental health and well-being of Medicare beneficiaries over a two-year period. Starting in 1998, a baseline survey was administered to a new cohort of respondents each year in the spring and a follow-up survey was conducted of those same respondents two years later. Cohorts 1-5 include the Baseline Data, the Follow-Up Data, and the Analytic Data file, which contains the merged Baseline and Follow-Up files along with supplemental variables. Beginning with Cohort 6, the Follow-Up Data were included only in the Analytic file. The HOS consists of the SF-36 Health Survey, which yields physical and mental health summary measures, as well as questions on topics such as chronic medical conditions, activities of daily living (ADLs), depression, smoking, physical health symptoms, weight and height, and additional questions corresponding to HEDIS (Health Care Employer Data and Information Set) measures such as urinary incontinence in older adults, osteoporosis testing in older women, and fall risk management. In 2006, CMS implemented the Medicare HOS 2.0 for Medicare Advantage Organizations (MAOs) which evaluates physical and mental health status using the Veteran RAND 12-Item Health Survey (VR-12). The revised instrument contains questions that gather information for case-mix and risk-adjustment variables, and collects information on respondents' physical functioning, bodily pain, social functioning, mental health, vitality, general health, and how respondents' physical and emotional health affects their lives. The survey includes case-mix adjustment variables which may be used to adjust the survey response data for beneficiary characteristics that are known to be related to systematic biases in the way people respond to survey questions. Demographic information includes respondent's age, gender, race, education level, marital status, annual household income, and geographic region.
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Multi-method Community Inquiry (R2 Part A): Qualitative Community Inquiry, Michigan, 2019-2020 (ICPSR 38533)

Released/updated on: 2024-09-30
Geographic coverage: Detroit, Flint, Michigan
Time period: 2019-01-01--2020-01-01

Multi-method Community Inquiry (R2 Part A): Qualitative Community Inquiry, Michigan was a three-part study designed to enhance understanding of the complex interactions between the person and environment that are associated with healthy aging for individuals with long-term physical disabilities from low-income and minority communities and to identify best practices related to impactful policies, programs, and resources.

This qualitative study conducted remote interviews with adults with long-term physical disabilities and key informant interviews to identify the environmental factors, including the policies, community programs, and personal supports, which are identified as supporting or promoting healthy aging in two low-income and racially/ethnically marginalized communities in Michigan. Potential participants were identified through community and disability organizations and either contacted through mailings or asked to self-identify in response to advertisements in local papers or other outlets. All focus groups and interviews were recorded, transcribed, and analyzed to identify key themes.

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Multi-method Community Inquiry (R2 Part B): Surveys of Community Members, Detroit and Flint, Michigan, 2019-2022 (ICPSR 38534)

Released/updated on: 2024-10-29
Geographic coverage: Detroit, Flint, United States, Michigan
Time period: 2019-11-01--2022-07-31

Multi-method Community Inquiry (R2 Part B): Surveys of Community Members was the second of a three-part study designed to enhance understanding of the complex interactions between the person and environment that are associated with healthy aging for individuals with long-term physical disabilities from low-income and minority communities and to identify best practices related to impactful policies, programs, and resources.

This study used cross-sectional surveys to identify environmental factors that support healthy aging among individuals with long-term physical disabilities from low-income and minority communities. The specific research questions in this project are:

  1. What kinds of systems, policies, and community programs do adults with physical disabilities use and how helpful do they perceive them to be?
  2. Does the use of these social recourses improve health outcomes?
  3. Do individuals from diverse backgrounds seem to benefit differently from the social resources available to them?
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Simple Crosstabs

National Research Mentoring Network Studies, Phase II: Multi-Study Common Measures Data, United States, 2019-2024 (ICPSR 39676)

Released/updated on: 2026-03-10
Geographic coverage: United States
Time period: 2019-10-01--2024-12-01

The National Research Mentoring Network (NRMN), an initiative supported by the National Institutes of Health (NIH) Common Fund, was established to support the career development of individuals from diverse backgrounds in biomedical research, with a focus on mentorship and professional development. In its first phase (2014-2019), the NRMN built a network of mentors and mentees from a variety of disciplines, with over 10,000 individuals including more than 7,000 mentors and mentees engaged in research mentorship training or grantsmanship coaching. Phase II (launched in 2019) built on this foundation and focused on investigating longer-term outcomes and studying mentorship interventions. This phase reimagined the NRMN as a consortium consisting of one coordination center (the NRMN Coordination Center), a resource center (the NRMN Resource Center) and 11 independent research studies that focused on mentorship, career development, and professional networking. These studies shared a common goal of exploring how specific mentorship practices influence career outcomes for diverse groups in biomedical research.

The multi-study common measures dataset of NRMN contains data collected using common measures across 10 of the 11 independent research studies conducted under NRMN Phase II (2019-2024). Each study implemented mentorship and career development interventions specific to individuals from diverse backgrounds, career stages, and fields in biomedical research. While study designs and populations varied, all agreed to collect data using a set of community-identified common measures. The common measures dataset was compiled using codebooks and documentation provided by study teams. Where full survey instruments were unavailable, variables were mapped from available materials and cross-checked for consistency. This dataset supports research on mentorship, professional development, and career outcomes in biomedical research.

Curated

National Survey of Institutionalized Persons, 1976 (ICPSR 7866)

Released/updated on: 1992-02-16
Geographic coverage: United States
This data collection was designed to obtain information about the services and resources of the various types of long-term care facilities in the United States, i.e., chronic care institutions (providing care for people with chronic conditions, diseases, and handicaps), institutions that provide care for the mentally ill and mentally handicapped, nursing homes, homes for the aged, and residential schools and treatments centers. Six major areas of concern were examined in this study: (1) the appropriateness of placement/admission and discharge, plus possible alternatives, (2) the quality of life within the institutional environment, (3) the residents' rights and legal status, (4) the medical and non-medical services provided and needed, (5) the sources of financing such care, and (6) the impact of government programs and policies upon the costs and provision of certain types of service. This information was collected from 9,090 residents of 851 institutions and from 3,289 of their family members. Administrative staff at each resident's facility also provided information about that facility as well as the sampled resident. Data about the resident's institution include its basic characteristics, e.g., type of care provided, ownership, number of beds, occupancy rate, and services and programs offered. Resident data include basic social and demographic characteristics, reason for institutionalization, cost of care, current activities, type of treatment, and the physical limitations of the institutional population. Family data examine the next of kin's relationship to the resident, e.g., relative's proximity to the institution, frequency of visits, and monetary contributions to the resident, as well as the next of kin's demographic characteristics and views of the resident and his or her institutionalization.
Curated
Partially restricted

Practice Patterns of Young Physicians, 1987: [United States] (ICPSR 9277)

Released/updated on: 2012-01-11
Geographic coverage: United States
Time period: 1987-04-09--1987-11-21

This study investigated the factors that influenced the career decisions of young physicians and the characteristics of their practices. The collection has five datasets: Public-Use Version of the Young Physicians Survey (Dataset 1), Socioeconomic Monitoring System Study (Dataset 2), ZIP Code Data (Dataset 3), Verbatim Responses to the Open-Ended Questions (Dataset 4), and Restricted-Use Version of the Young Physicians Survey (Dataset 5).

The Public-Use Version of the Young Physicians Survey comprises responses from the Young Physicians Survey (YPS), plus merged data from the American Medical Association (AMA) Masterfile and the Association of American Medical Colleges' Student and Applicant Information Management System (SAIMS) database. The YPS interviewed physicians below 40 years of age who recently completed graduate medical training and were in their early years of practice. These physicians were queried about their graduate medical training, perceptions of the medical profession, current practice arrangements, career decisions, family background, patient care activities, and current income and expenses. To obtain information on current practice arrangements, respondents were questioned about the practices they worked in, including who owned the practices, the number of physicians in each practice, specialties or subspecialties practiced, usual fees for selected services, percentages of revenues from HMOs, PPOs, and IPAs, and percentages of patients who were Medicare patients, had no health insurance coverage, or were poor, Black, Hispanic, severely physically disabled, or chronically mentally ill. Questions on career decisions asked respondents about factors that influenced their career choices, such as reasons for working in multiple practices, reasons for leaving past practices, and reasons for deciding in favor of or against self-employment. Information on family background elicited by the survey includes the respondent's race, marital status, and educational debt, parents' income class and education, number of children living in the respondent's home, and whether the respondent's spouse or parents were physicians. Questions on patient care activities included questions on the number of hours spent providing uncompensated health care to the poor, and the number of hours spent with patients in a variety of settings, such as the office, emergency rooms, hospital outpatient clinics, and operating rooms. Information from the AMA Masterfile and the SAIMS database includes board certification status, AMA membership, school and year of graduation, Medical College Admission Test scores, primary undergraduate institution, most recent grade point averages, place of birth, number of acceptances to United States medical schools, parents' occupations, preferred medical specialty, and preferred practice setting.

Dataset 2 comprises responses from the AMA's Socioeconomic Monitoring System (SMS), a semiannual survey of nonfederal physicians that collected data on topics similar to those in the YPS, such as practice ownership, hours spent seeing patients in various settings, income, expenses, and opinions on practice procedures. The SMS data can be used for comparative analyses of young, prime, and senior physicians.

The ZIP Code Data contain estimates for the composition of the population residing in the ZIP code areas of the YPS respondents' main practices. This includes estimates of the size of each ZIP code area population, as well as its components with respect to gender, age, race, Hispanic ethnicity, and income. Also included are estimates of the number of physicians and their composition with respect to age, sex, practice type, and specialty.

Dataset 4 contains verbatim responses to open-ended questions asked in the YPS.

The Restricted-Use Version of the Young Physicians Survey is the same as the Public-Use Version of the Young Physicians Survey, except for some variables that were restricted from general dissemination for reasons of confidentiality. The restricted-use version includes the restricted variables, but the public-use version does not.

Curated

RAND Center for Population Health and Health Disparities (CPHHD) Data Core Series: Disability, 2000 [United States] (ICPSR 27862)

Released/updated on: 2011-05-13
Geographic coverage: North Carolina, Indiana, Wyoming, Utah, Arizona, Montana, Kentucky, California, Kansas, Florida, Delaware, Pennsylvania, Mississippi, Iowa, Illinois, Texas, Connecticut, Georgia, Virginia, Maryland, Idaho, Oregon, Vermont, Puerto Rico, United States, Oklahoma, Tennessee, Maine, Alabama, Arkansas, Washington, South Carolina, Nebraska, West Virginia, Massachusetts, Colorado, Missouri, Alaska, North Dakota, Wisconsin, Nevada, New York, District of Columbia, Rhode Island, South Dakota, Hawaii, Minnesota, New Jersey, Michigan, New Mexico, New Hampshire, Louisiana, Ohio
The RAND Center for Population Health and Health Disparities (CPHHD) Data Core Series is composed of a wide selection of analytical measures, encompassing a variety of domains, all derived from a number of disparate data sources. The CPHHD Data Core's central focus is on geographic measures for census tracts, counties, and Metropolitan Statistical Areas (MSAs) from two distinct geo-reference points, 1990 and 2000. The current study, Disability, contains cross-sectional data from the year 2000. Based on the Decennial Census Special Table Series published by the Administration on Aging, this study contains a large number of disability measures categorized by age (55+), type of disability (sensory, learning, employment, and self-care), and poverty status.
Curated
Partially restricted
Simple Crosstabs

Requests for Assistance with Adaptive Switches from Individuals with Severe Communication Impairments, 2007 to 2012 [California, Kansas, and Washington] (ICPSR 36515)

Released/updated on: 2016-10-25
Geographic coverage: California, Kansas, Washington
Time period: 2007-01-01--2012-01-01

The Requests for Assistance with Adaptive Switches from Individuals with Severe Communication Impairments study is one of the three projects in the Communication of People with MR, 2006 to 2012 Series, which focuses on identifying participant variables that predict success in increasing communication skills of individual with intellectual disabilities. The study data were collected to show how children and adults with profound multiple impairments can learn to request assistance with adaptive switches and to on examine the change from pre-intentional to intentional symbolic communication.

The study examined 77 respondents, ages 2 through 71, by administering three assessments: the Communication Complexity Scale (CCS), the Mullen Scales of Early Learning and a functional vision assessment. The CCS was administered to 68 respondents on up to three occasions. The first occasion of administration was to participants who were pre-intentional communicators. The CCS was administered on a second occasion to participants when they were identified as being on the cusp between pre-intentional and intentional communication. The third and final occasion of administration occurred when participants were identified as "learners" and could express preferences using switches and other means.

The Mullen Scales were administered to 22 of the participants. Of the 77 participants initially selected for the study, 7 did not complete either scale. Vision impairment was identified in 68 respondents, 28 who had no functional use and 41 who had some functional use of their vision.

Curated
Partially restricted

Springfield [Massachusetts] Study of Populations with Disabilities, 1993-1997 (ICPSR 2623)

Released/updated on: 2024-02-14
Geographic coverage: United States, Massachusetts, Springfield
This two-wave longitudinal survey of persons with disabilities in Springfield, Massachusetts, had four research objectives: (1) to determine levels of formal and informal service use among people with disabilities in Springfield, (2) to determine the prevalence and consequences of unmet needs for assistance with activities of daily living (ADLs) and instrumental activities of daily living (IADLs), (3) to test the hypothesis that residents reporting unmet needs for assistance with daily living activities at baseline would have higher levels of emergency room use and hospitalization over the follow-up period than respondents not reporting such needs, and (4) to assess respondents' satisfaction with access to and quality of their health care and health care providers. Conducted in 1993-1994 and 1996-1997, the survey gathered information on health, health service utilization, satisfaction with health services, assistance with ADLs (eating, dressing, bathing, toileting, transferring in and out of bed/chair, and moving around indoors) and IADLs (preparing meals, shopping for groceries and household supplies, housekeeping, transportation, and financial management), social and physical activity, social support, health care coverage, and sociodemographic characteristics such as income, year of birth, marital status, race, Hispanic origin, religion, education, and employment.
Curated
Restricted

Stakeholder Views on Intellectual Disability Research Ethics, New York, 2013 (ICPSR 38311)

Released/updated on: 2022-03-30
Geographic coverage: United States, Syracuse, New York (state)
Time period: 2013-07-01--2013-11-24

Adults with intellectual disabilities (ID) face significant physical and mental health disparities. Ethical challenges may discourage their inclusion in research and hinder scientific advancements to reduce these health disparities. Five core groups are adults with ID, individuals who provide informal support to adults with ID, individuals who provide services to adults with ID, ID researchers, and Institutional Review Board (IRB) members. Little is known about these stakeholders' opinions on how to ethically include adults with ID in research. Increasing this knowledge base, especially by inviting input from groups whose opinions are rarely examined, is critical to helping the scientific community devise and deploy sensitive and responsive practices and encouraging research to reduce pressing disparities.

The research's long-term goal is to encourage science that is sensitive to the ethical and social dimensions of research with adults with ID and more inclusive of this population. The research's aim was to qualitatively study the views of adults with ID, persons who provide informal support to adults with ID, and persons who provide services to adults with ID on the participation of adults with ID in self-report research. The focus on self-report research that aims to study the thoughts and experiences of adults with intellectual disability reflects the field's increased emphasis on direct representation in such research and the less clear risks this research may bear.

Curated

Survey of Disability and Work, 1978: [United States] (ICPSR 8491)

Released/updated on: 1992-02-16
Geographic coverage: United States
The Survey of Disability and Work was designed to examine the economic, medical, and social consequences of limitation in work activity for the disabled person and the person's family, including eligibility for public income-maintenance programs. This study includes information on disability program provisions and the public's knowledge of these government programs, as well as the source for this information and advice as to whether or not to apply for any of the various kinds of benefits. Other objectives of this survey were to examine work incentives and income adequacy as they affect a disabled person's inclination to apply for benefits or to return to the labor force once on the rolls. Measures of medical severity (in terms of symptoms and diagnoses) were established, as well as, the number and characteristics of the disabled, the proportion of different forms of health problems, national disability rates for different races and age groups, and the proportion of the disabled whose total family income falls below the poverty level. Included in this data collection are variables on the labor force, work experience and limitations, job satisfaction, attitudinal data, family income and background, government programs, and disability benefits.
Curated

Survey of Disabled and Nondisabled Adults, 1972: [United States] (ICPSR 2731)

Released/updated on: 2001-07-03
Geographic coverage: United States
This survey was designed to examine the economic, medical, and social consequences of disability for disabled persons and their families. For the survey data were collected from nondisabled, disabled, newly disabled, and recovered disabled people in the following subject areas: family background, labor force and work experience, health conditions, work limitations, government programs used, rehabilitation services used, personal attitudes, health insurance and medical care, family income, assets and debts, family and social relations, Social Security Administration entitlement data, and Social Security Administration earnings data.
Curated
Simple Crosstabs

Survey of Low Income Aged and Disabled, United States, 1973-1974 (ICPSR 7661)

Released/updated on: 2018-11-19
Geographic coverage: United States
Time period: 1973-01-01--1974-01-01
This data collection contains the results of the Survey of Low Income Aged and Disabled (SLIAD), conducted in 1973-1974 in order to collect demographic and socioeconomic data necessary for assessing the effect of the Supplemental Security Income (SSI) program on potential recipients. After January 1, 1974, SSI replaced the state-administered welfare programs of Old Age Assistance (OAA), Aid to the Blind (AB), and Aid to the Permanently and Totally Disabled (APTD) and was meant to improve the economic well-being of the adult poor. A national sample of about 18,000 low-income aged, blind, and/or disabled adults was interviewed in 1973, and reinterviewed in 1974, after SSI was implemented. The 1974 re-interviews were conducted only with persons successfully interviewed in 1973. No new cases were added to replace first-year losses, nor were cases dropped because they no longer met SSI eligibility. Part 1 contains data gathered from a sample made up of aged and disabled persons who received OAA, AB, and/or APTD payments in 1973. Part 2 contains data gathered from a sample of low-income aged and disabled people in the general population (generated from Current Population Survey samples). The United States Census Bureau conducted the interviews and collected the data. The 1973 survey placed great emphasis on financial matters. Each respondent was asked to report income received in the preceding month and year by each of three general classes of persons in the household. The questionnaire listed more than 15 income sources including payments and awards from almost every transfer program possible, earnings from jobs and businesses, gifts, and dividends. The financial section of the questionnaire also included items aimed at establishing the value of owned property, savings and investments, the amount of indebtedness, and the amount spent for food, shelter, and other recurring household expenditures. For the most part, the remainder of the questionnaire concerned (1) household composition, (2) personal history, (3) health, health care, and the capacity for self-maintenance, (4) standard of living, as represented by housing, diet, travel, and recreation, (5) factors that might affect the relation between income and standard of living (e.g., personal preference, physical capacity, and access), and (6) attitudinal response to these conditions, circumstances, and types of status. The 1974 survey was similar in that it asked almost all of the earlier income and asset questions, but added a section on SSI payments. It also collected more detail on household living expenses. It did not repeat the biographical section or the inventory of health conditions from the 1973 survey, but did contain new questions on a spouses' funeral expenses as well as the respondent's experience with SSI.
Self-published

A systematic discourse analysis of how U.S. political leaders frame disability: Implications for students with disabilities (ICPSR 307656)

Released/updated on: 2026-07-06
Geographic coverage: United States
Time period: 2025-01-01--2025-12-31

This study examined how U.S. political leaders publicly framed disability during calendar year 2025, using a systematic discourse analysis of public statements and federal legislation. It also examined how this discourse was reflected in federal education policy, including statements by the Secretary of Education and education-related bills.

The study analyzed 121 public statements about people with disabilities made by White House and Cabinet officials, and 32 federal bills introduced in 2025 that could affect the rights, services, or educational opportunities of individuals with disabilities. Statements were identified through a two-stage process that combined a custom Python-based web-scraping tool, which extracted verbatim, attributed quotations from news articles, press releases, interview transcripts, official speeches, and social media posts using the OpenAI GPT-4 API, with manual verification searches conducted in ChatGPT Plus and Perplexity AI Pro. Federal bills were identified through Congress.gov. All statements were reviewed by the authors to confirm accuracy, attribution, and date. Each statement and bill was independently scored by two human coders and by GPT-4 using an author-developed four-point rubric grounded in the social and human rights models of disability, ranging from 1 (dehumanizing) to 4 (affirming).

The data contain one record per statement, including the speaker's name and title, date, verbatim quotation, source, context, an analysis of the framing, a score from 1 (dehumanizing) to 4 (affirming), and the rationale for the score. The bills data are available on the project website and are not included in this deposit.

The study was approved by the university Institutional Review Board (March 2025) and was preregistered on the Open Science Framework (https://osf.io/hbfe5/).

Curated
Simple Crosstabs

Wheelchair Tiedown and Occupant Restraint System (WTORS) Activity in Paratransit Vehicles, 2012 (ICPSR 36970)

Released/updated on: 2017-12-20
Time period: 2012-01-01--2013-01-01
The purpose of this study was to characterize wheelchair tiedown and occupant restraint system (WTORS) usage on paratransit vehicles. A retrospective review of on-board video monitoring recordings of trips by passengers seated in Wheeled Mobility Devices (WhMDs) was conducted. Data was collected from March through October, 2012. The study was conducted using two paratransit vehicles within one metropolitan area. Along with general information about the WhMDs and other equipment used by the passengers, details of the passengers' access and use of the vehicle were recorded. Details of WTORS usage including number of tiedowns and restraints used, attachment points to the WhMD and the vehicle floor, and any improper usage were recorded. Instability of the WhMD and incidents observed while the vehicle was in motion, along with contributing factors, were recorded and described.
Curated
Partially restricted
Simple Crosstabs

Young Children with Physical Disabilities, 2007 to 2012 [Seattle, Washington] (ICPSR 36516)

Released/updated on: 2016-10-25
Geographic coverage: Seattle, Washington
Time period: 2007-01-01--2012-01-01

The Young Children with Physical Disabilities Seattle, Washington study is one of the three projects in the Communication of People with MR, 2006 to 2012 Series, which focuses on identifying participant variables that predict success in increasing communication skills of individual with intellectual disabilities. The study data were collected to show that triadic eye gaze for joint attention can be established in very young children with moderate or severe motor impairments.

Dataset 1 contains 48 cases. Most cases include data on results of the Complexity of Communication Scale, a measure developed by the Communication of People with MR project. In addition, Dataset 1 contains data on a Functional Assessment, the Bayley Scales of Infant and Toddler Development, the Mullen Scales of Early Learning and the Communication and Symbolic Behavior Scales.

Dataset 2 contains data on Triadic Eye Gaze and Coordinated Joint Attention. Participants for Dataset 2 were convenience sampled from birth-to-three centers in Seattle, Washington. There were 18 participants, children with severe physical disabilities between 10 and 24 months of age, who were randomly assigned to one of two groups: (a) an experimental treatment group ( n = 9) or (b) a control group ( n = 9).