Behavioral Risk Factor Surveillance System (BRFSS), 2003 (ICPSR 34085)
Census of Juveniles in Residential Placement and Juvenile Residential Facility Census, 1997-2010 -- Concatenated Matched Data [United States] (ICPSR 27543)
Census of Juveniles in Residential Placement and Juvenile Residential Facility Census, 1997-2010 -- Concatenated Matched Facility-Level Data [United States] (ICPSR 27544)
Census of Juveniles in Residential Placement and Juvenile Residential Facility Census, 1997-2010 -- Concatenated Matched State-Level Data [United States] (ICPSR 27545)
The Community Vulnerability and Responses to Drug-User-Related HIV/AIDS, 1990-2013 [96 Metropolitan Statistical Areas, United States] (ICPSR 36575)
The Community Vulnerability and Responses to Drug-User-Related HIV/AIDS, 1990-2013 [96 Metropolitan Statistical Areas, United States] study (CVAR) was a research study of why large United States Metropolitan Statistical Areas (MSAs) vary over time in their vulnerability to HIV/AIDS among drug users and in MSA responses to HIV/AIDS. This collection contains estimates of HIV prevalence among people who injected drugs (PWID) and among sub-populations of PWID. This collection is comprised of ten datasets with differing amounts of variables and provides trend data that describe the following:
- Epidemiologic outcomes including population prevalence of PWIDs and Non-injecting drug users (NIDUs), and particularly their prevalence among youth; and, among PWIDs, HIV prevalence, late-diagnosis HIV cases, and AIDS incidence and mortality.
- Implementation of evidence-based drug-related interventions including drug abuse treatment, syringe exchange, HIV counseling and testing.
- Implementation of non-evidence-based drug-related interventions including incarceration and arrests of drug users.
The collection contains data on the MSA sub-populations including Black, Hispanic, White and "other" race categories. In addition, some statistics are presented in age range categories such as ages 15-29, 30-64 and 15-64.
Criminal Justice Drug Abuse Treatment Studies (CJ-DATS) 2: Organizational Process Improvement Intervention (OPII), 2010-2013 [United States] (ICPSR 35082)
The Criminal Justice Drug Abuse Treatment Studies 2 (CJ-DATS 2) was launched in 2008 with a focus on conducting implementation research in criminal justice settings. NIDA's ultimate goal for CJ-DATS 2 was to identify implementation strategies that maximize the likelihood of sustained delivery of evidence-based practices to improve offender drug abuse and HIV outcomes, and to decrease their risk of incarceration.
The Organizational Process Improvement Intervention (OPII) study (aka Assessment study) focused on implementing assessment and treatment planning processes. Screening and assessment were used to identify substance abuse-related problems and to develop programming to address the problems so identified.
The OPII study engaged corrections and treatment agencies to improve the quality of interagency communication through the effective use of assessment and case planning processes and treatment referrals. Both inter-agency and intra-agency change processes were targeted. A multi-phase implementation protocol was used, wherein agencies engaged in team development, needs assessment, planning, implementation, and sustainability in distinct steps. Early- and delayed-start sites allowed the research team to control for effects of environmental changes within states. The protocol targeted critical communications channels between otherwise often highly segregated correctional and treatment agencies.
Evaluation of the OPII used a multi-site cluster randomized design with multiple measures over the course of the intervention. Clusters consisted of a criminal justice agency and one or more community treatment providers that received referrals from that criminal justice agency. Each of the 9 centers had two clusters (one had three), and each cluster was randomized to an Early-Start or a Delayed-Start condition with multiple measures over the course of the intervention. After randomization, the Early-Start sites began the OPII, while the Delayed-Start sites conducted business as usual, without any additional intervention. After approximately 12 months, or when the Early-Start change team completed the Implementation phase, the Delayed-Start change team began to carry out the protocol.
Throughout the study period different subsets of individuals working at correctional facilities and treatment programs at the study sites were asked to complete surveys. During the Baseline period of the study survey data were collected from correctional staff, correctional directors, treatment staff, treatment directors, correctional executives and treatment executives. These data can be found in (DS1-DS12). The executive respondents provided information at the organizational level for the programs they oversaw (DS5, DS6). Next, Needs Assessments were completed by the change teams and their facilitators (DS13-DS14). The change teams and facilitators also responded to surveys on Process Improvement Planning (DS15-DS19). During the Implementation stage, surveys were administered to select substance abuse treatment programs, change team facilitators, change team members and the immediate supervisors of the change team members (DS20-DS27). Selected correctional and treatment staff members (in the Early-Start sites only) were asked to complete Follow-up surveys at the end of the OPII process (DS28-DS33). Staff members who completed surveys also provided demographic data (DS36-DS41). DS42 is a restricted use version of DS41. Change team members kept track of the time they spent on OPII activities (DS35). Change team success was evaluated by a subset of raters (DS34).
Surveys were administered at 21 study sites and there was a total of over 2,700 survey respondents.
Criminal Justice Drug Abuse Treatment Studies (CJ-DATS): Step 'N Out, 2002-2006 [United States] (ICPSR 30221)
Early Steps Multisite Study (Age 10), Pittsburgh, Pennsylvania, Eugene, Oregon, and Charlottesville, Virginia, 2002-2014 (ICPSR 38754)
Early Steps Multisite Study (Age 2), Pittsburgh, Pennsylvania, Eugene, Oregon, and Charlottesville, Virginia, 2002-2014 (ICPSR 38407)
Early Steps Multisite Study (Age 3), Pittsburgh, Pennsylvania, Eugene, Oregon, and Charlottesville, Virginia, 2002-2014 (ICPSR 38745)
Early Steps Multisite Study (Age 4), Pittsburgh, Pennsylvania, Eugene, Oregon, and Charlottesville, Virginia, 2002-2014 (ICPSR 38748)
Early Steps Multisite Study (Age 5), Pittsburgh, Pennsylvania, Eugene, Oregon, and Charlottesville, Virginia, 2002-2014 (ICPSR 38749)
Early Steps Multisite Study (Age 7), Pittsburgh, Pennsylvania, Eugene, Oregon, and Charlottesville, Virginia, 2002-2014 (ICPSR 38751)
Early Steps Multisite Study (Age 8), Pittsburgh, Pennsylvania, Eugene, Oregon, and Charlottesville, Virginia, 2002-2014 (ICPSR 38752)
The Early Steps Multisite (ESM) Study is a randomized controlled trial testing the efficacy of the early childhood version of the Family Check-Up intervention. The enclosed data file includes home-based assessments carried out at child ages 2, 3, 4, 5, 7.5, 8.5, 9.5, and 10.5 involving 731 families from three distinct communities in the United States: Pittsburgh, PA (urban), Eugene, OR (suburban), and in and outside Charlottesville, VA (rural). Assessments include questionnaires and interviews with primary caregivers (i.e., typically mothers) and alternative caregivers (fathers, grandparents, and other child caregivers) about child behavior, sociodemographic and family risk, parent well-being and support, coupled with observations of developmentally-tailored parent-child interaction tasks (e.g., teaching, clean-up, and meal preparation tasks at ages 2-5, discussion tasks at ages 7.5 and 9.5). Teacher reports on multiple domains of child behavior were obtained beginning at age 7.5 through age 10.5, and youth reports on their own adjustment beginning at child age 8.5. Direct testing of children's academic achievement was administered at child ages 5, 7.5, and 8.5 using scales from the Woodcock-Johnson.
Early Steps Multisite Study (Age 9), Pittsburgh, Pennsylvania, Eugene, Oregon, and Charlottesville, Virginia, 2002-2014 (ICPSR 38753)
Early Steps Multisite Study (Condition Files), Pittsburgh, Pennsylvania, Eugene, Oregon, and Charlottesville, Virginia, 2002-2014 (ICPSR 38755)
The Early Steps Multisite (ESM) Study is a randomized controlled trial testing the efficacy of the early childhood version of the Family Check-Up intervention. The enclosed data file includes home-based assessments carried out at child ages 2, 3, 4, 5, 7.5, 8.5, 9.5, and 10.5 involving 731 families from three distinct communities in the United States: Pittsburgh, PA (urban), Eugene, OR (suburban), and in and outside Charlottesville, VA (rural). Assessments include questionnaires and interviews with primary caregivers (i.e., typically mothers) and alternate caregivers (fathers, grandparents, and other child caregivers) about child behavior, sociodemographic and family risk, parent well-being and support, coupled with observations of developmentally-tailored parent-child interaction tasks (e.g., teaching, clean-up, and meal preparation tasks at ages 2-5, discussion tasks at ages 7.5 and 9.5). Teacher reports on multiple domains of child behavior were obtained beginning at age 7.5 through age 10.5, and youth reports on their own adjustment beginning at child age 8.5. Direct testing of children's academic achievement was administered at child ages 5, 7.5, and 8.5 using scales from the Woodcock-Johnson.
The Condition Files refer to feedback and intervention follow-up sessions researchers conducted with "Parent Consultants". Parent consultants were highly trained masters- or doctoral-level clinicians with backgrounds typically in social work, counseling, or clinical psychology, who conducted assessment and feedback sessions with caregivers.
Juvenile Residential Facility Census, 2000-2010 -- Concatenated Data [United States] (ICPSR 27542)
Juvenile Residential Facility Census, 2000-2010 -- Concatenated State-Level Data [United States] (ICPSR 27546)
Juvenile Residential Facility Census, 2000 [United States] (ICPSR 4672)
Juvenile Residential Facility Census, 2002 [United States] (ICPSR 23520)
Juvenile Residential Facility Census, 2004 [United States] (ICPSR 25282)
Juvenile Residential Facility Census, 2006 [United States] (ICPSR 25981)
Juvenile Residential Facility Census, 2008 [United States] (ICPSR 34402)
Juvenile Residential Facility Census, 2010 [United States] (ICPSR 34449)
NICHD Study of Early Child Care and Youth Development: Phase I, 1991-1994 [United States] (ICPSR 21940)
The overall purpose of this study was to examine the influence of variations in early childcare histories on the psychological development of infants and toddlers from a variety of family backgrounds. This general objective was addressed through a prospective, longitudinal study of the experiences of 1,364 children and their families, which took into account the complex interactions among child characteristics and those of the human and physical environments in which the children were reared.
Research GoalsThe specific research aims were as follows:
Examining the relationship between infants' childcare arrangements (defined in terms of hours, type, quality, and stability of care and the age at which the child entered care) and children's concurrent and long-term development. Specifically, the study investigated the association between children's experiences in childcare and their social, emotional, language, and cognitive development. The social-emotional assessments included measures of attachment, independence, compliance, behavior problems, prosocial and antisocial behavior, and general competence in interacting with peers. Cognitive variables include general developmental level and problem solving skills. Language assessments incorporated measures of children's expressive and receptive communicative competence.
Examining whether the social ecology of the home moderates the effects of childcare, i.e., whether children from different home environments are differentially affected by similar childcare experiences. The study examined the moderating effects of parents' values and attitudes, psychological adjustment and mental health, stress and social support, child-rearing practices, time use, interactions with the child, the marital relationship, and family demographics.
Examining whether individual differences among children moderate the effects of infant care on child development. The study examined the moderating effects of such child characteristics as age, sex, health, birth order, and temperament.
Identify demographic and family characteristics associated with families' childcare decisions. The study examined whether specific childcare arrangements are related to the parents' social class, marital status, psychological adjustment and personality, child-rearing values and attitudes, parenting practices, stress, social support, marital relationship, and the availability of childcare in the community.
Provide a natural history of infant care in the 1990s, and help establish a baseline of data pertaining to the kinds of care being used by families. Whereas other national databases, such as those provided by the United States Census Bureau, provide static estimates of the number of children in different types of childcare, this network study supplements that knowledge with longitudinal data on successive enrollments into day care at various ages, patterns of arrangements used concurrently and over time, and the stability of arrangements during the first three years of life. One of the most valuable aspects of the collaborative study is the opportunity it provides to obtain a more complete and accurate picture of patterns of infant care used by families today. Census surveys use only gross categories of care (e.g., center vs. in-home). In this study, more fine-grained information regarding the types of centers and home-care facilities was gathered.
Examine the consequences for families of maternal employment and childcare choices. Family relationships, parental mental health, family stress, and so on, are not just inputs to child development or moderators of childcare effects, they are also outcomes. High-quality childcare may alleviate family stress and enhance parental adjustment. Low-quality childcare may add to the stress parents experience. Although the main focus in the study was on the effect of childcare on the child, the study also examined the effect of childcare on the family.
Identify demographic characteristics of childcare associated with childcare quality. Of interest to policy makers is another aspect of the study, the investigation of those regulatory characteristics that predict care of higher quality. These characteristics included the level and type of caregiver training, the size of the childcare group, the auspices of the childcare program (public/private, profit/nonprofit, independent/chain, employer-sponsored/church-based), whether the facility was licensed or unlicensed, the level of payment and fees, and whether the caregiver was a relative of the family.
309 data files were compiled for this study and are organized into 3 main groups:
Analytical Data Sets (ADS) -- The raw data were examined and composites defined by small groups of individual principal investigators according to the demographic, family, childcare, and child outcome content of the data. The psychometric and distributional qualities of the variables, along with site differences, were examined. A set of variables that were psychometrically and distributionally acceptable to be used in analytic analyses was designed to test the study hypotheses. These data files comprise Parts 1-42 of the study data material.
Supplemental Data Sets -- New and revised analysis variables as well as across-time mean scores and primary composites were produced as a supplement to the original Analytical Datasets. These data files comprise Parts 43-55 of the study data material.
Raw Data Sets -- The raw data were made available and comprise Parts 56-309 of the study data material.
A three-day summer training workshop on the SECCYD was put on by NICHD at the Inter-University Consortium for Political and Social Research in Ann Arbor, Michigan in 2010. The binder from that workshop, which includes the Powerpoint slides used during presentations, are freely available to the public as part of the study documentation.
NICHD Study of Early Child Care and Youth Development: Phase II, 1995-1999 [United States] (ICPSR 21941)
The overall purpose of this study was to examine the influence of variations in early childcare histories on the psychological development of infants and toddlers from a variety of family backgrounds. This general objective was addressed through a prospective, longitudinal study of the experiences of 1,364 children and their families, which took into account the complex interactions among child characteristics and those of the human and physical environments in which the children were reared.
Research GoalsThe specific research aims were as follows:
Examining the relationship between infants' childcare arrangements (defined in terms of hours, type, quality, and stability of care and the age at which the child entered care) and children's concurrent and long-term development. Specifically, the study investigated the association between children's experiences in childcare and their social, emotional, language, and cognitive development. The social-emotional assessments included measures of attachment, independence, compliance, behavior problems, prosocial and antisocial behavior, and general competence in interacting with peers. Cognitive variables include general developmental level and problem solving skills. Language assessments incorporated measures of children's expressive and receptive communicative competence.
Examining whether the social ecology of the home moderates the effects of childcare, i.e., whether children from different home environments are differentially affected by similar childcare experiences. The study examined the moderating effects of parents' values and attitudes, psychological adjustment and mental health, stress and social support, child-rearing practices, time use, interactions with the child, the marital relationship, and family demographics.
Examining whether individual differences among children moderate the effects of infant care on child development. The study examined the moderating effects of such child characteristics as age, sex, health, birth order, and temperament.
Identify demographic and family characteristics associated with families' childcare decisions. The study examined whether specific childcare arrangements are related to the parents' social class, marital status, psychological adjustment and personality, child-rearing values and attitudes, parenting practices, stress, social support, marital relationship, and the availability of childcare in the community.
Provide a natural history of infant care in the 1990s, and help establish a baseline of data pertaining to the kinds of care being used by families. Whereas other national databases, such as those provided by the United States Census Bureau, provide static estimates of the number of children in different types of childcare, this network study supplements that knowledge with longitudinal data on successive enrollments into day care at various ages, patterns of arrangements used concurrently and over time, and the stability of arrangements during the first three years of life. One of the most valuable aspects of the collaborative study is the opportunity it provides to obtain a more complete and accurate picture of patterns of infant care used by families today. Census surveys use only gross categories of care (e.g., center vs. in-home). In this study, more fine-grained information regarding the types of centers and home-care facilities was gathered.
Examine the consequences for families of maternal employment and childcare choices. Family relationships, parental mental health, family stress, and so on, are not just inputs to child development or moderators of childcare effects, they are also outcomes. High-quality childcare may alleviate family stress and enhance parental adjustment. Low-quality childcare may add to the stress parents experience. Although the main focus in the study was on the effect of childcare on the child, the study also examined the effect of childcare on the family.
Identify demographic characteristics of childcare associated with childcare quality. Of interest to policy makers is another aspect of the study, the investigation of those regulatory characteristics that predict care of higher quality. These characteristics included the level and type of caregiver training, the size of the childcare group, the auspices of the childcare program (public/private, profit/nonprofit, independent/chain, employer-sponsored/church-based), whether the facility was licensed or unlicensed, the level of payment and fees, and whether the caregiver was a relative of the family.
193 data files were compiled for this study and are organized into 3 main groups:
Analytical Data Sets (ADS) -- The raw data were examined and composites defined by small groups of individual principal investigators according to the demographic, family, childcare, and child outcome content of the data. The psychometric and distributional qualities of the variables along with site differences were examined. A set of variables that was psychometrically and distributionally acceptable to be used in analytic analyses was designed to test the study hypotheses. These data files comprise Parts 1-24 of the study data material.
Supplemental Data Sets -- New and revised analysis variables as well as across-time mean scores and primary composites were produced as a supplement to the original Analytical Data Sets. These data files comprise Parts 25-27 of the study data material.
Raw Data Sets -- The raw data were made available and comprise Parts 28-193 of the study data material.
A three-day summer training workshop on the SECCYD was put on by NICHD at the Inter-University Consortium for Political and Social Research in Ann Arbor, Michigan in 2010. The binder from that workshop, which includes the Powerpoint slides used during presentations, are freely available to the public as part of the study documentation.
NICHD Study of Early Child Care and Youth Development: Phase III, 2000-2004 [United States] (ICPSR 21942)
The overall purpose of this study was to examine the influence of variations in early childcare histories on the psychological development of infants and toddlers from a variety of family backgrounds. This general objective was addressed through a prospective, longitudinal study of the experiences of 1,364 children and their families, which took into account the complex interactions among child characteristics and those of the human and physical environments in which the children were reared.
Research GoalsThe specific research aims were as follows:
Examining the relationship between infants' childcare arrangements (defined in terms of hours, type, quality, and stability of care and the age at which the child entered care) and children's concurrent and long-term development. Specifically, the study investigated the association between children's experiences in childcare and their social, emotional, language, and cognitive development. The social-emotional assessments included measures of attachment, independence, compliance, behavior problems, prosocial and antisocial behavior, and general competence in interacting with peers. Cognitive variables include general developmental level and problem solving skills. Language assessments incorporated measures of children's expressive and receptive communicative competence.
Examining whether the social ecology of the home moderates the effects of childcare, i.e., whether children from different home environments are differentially affected by similar childcare experiences. The study examined the moderating effects of parents' values and attitudes, psychological adjustment and mental health, stress and social support, child-rearing practices, time use, interactions with the child, the marital relationship, and family demographics.
Examining whether individual differences among children moderate the effects of infant care on child development. The study examined the moderating effects of such child characteristics as age, sex, health, birth order, and temperament.
Identify demographic and family characteristics associated with families' childcare decisions. The study examined whether specific childcare arrangements are related to the parents' social class, marital status, psychological adjustment and personality, child-rearing values and attitudes, parenting practices, stress, social support, marital relationship, and the availability of childcare in the community.
Provide a natural history of infant care in the 1990s, and help establish a baseline of data pertaining to the kinds of care being used by families. Whereas other national databases, such as those provided by the United States Census Bureau, provide static estimates of the number of children in different types of childcare, this network study supplements that knowledge with longitudinal data on successive enrollments into day care at various ages, patterns of arrangements used concurrently and over time, and the stability of arrangements during the first three years of life. One of the most valuable aspects of the collaborative study is the opportunity it provides to obtain a more complete and accurate picture of patterns of infant care used by families today. Census surveys use only gross categories of care (e.g., center vs. in-home). In this study, more fine-grained information regarding the types of centers and home-care facilities was gathered.
Examine the consequences for families of maternal employment and childcare choices. Family relationships, parental mental health, family stress, and so on, are not just inputs to child development or moderators of childcare effects, they are also outcomes. High-quality childcare may alleviate family stress and enhance parental adjustment. Low-quality childcare may add to the stress parents experience. Although the main focus in the study was on the effect of childcare on the child, the study also examined the effect of childcare on the family.
Identify demographic characteristics of childcare associated with childcare quality. Of interest to policy makers is another aspect of the study, the investigation of those regulatory characteristics that predict care of higher quality. These characteristics included the level and type of caregiver training, the size of the childcare group, the auspices of the childcare program (public/private, profit/nonprofit, independent/chain, employer-sponsored/church-based), whether the facility was licensed or unlicensed, the level of payment and fees, and whether the caregiver was a relative of the family.
504 data files were compiled for this study and are organized into 4 main groups:
Analytical Data Sets (ADS) -- The raw data were examined and composites defined by small groups of individual principal investigators according to the demographic, family, childcare, and child outcome content of the data. The psychometric and distributional qualities of the variables along with site differences were examined. A set of variables that was psychometrically and distributionally acceptable to be used in analytic analyses was designed to test the study hypotheses. These data files comprise Parts 1-49 of the study data material.
Supplemental Data Sets -- New and revised analysis variables as well as across-time mean scores and primary composites were produced as a supplement to the original Analytical Data Sets. These data files comprise Parts 50-55 of the study data material.
Raw Census-Related Data Sets -- Files were produced using geocoded addresses for survey respondents to match block group level data from the 1990 and 2000 Censuses for investigators to create additional measures of interest from the geocoded addresses. These data files comprise Parts 56-58 of the study data material.
Raw Data Sets -- The raw data were made available and comprise Parts 59-505 of the study data material.
A three-day summer training workshop on the SECCYD was put on by NICHD at the Inter-University Consortium for Political and Social Research in Ann Arbor, Michigan in 2010. The binder from that workshop, which includes the Powerpoint slides used during presentations, are freely available to the public as part of the study documentation.
NICHD Study of Early Child Care and Youth Development: Phase IV, 2005-2007 [United States] (ICPSR 22361)
The overall purpose of this study was to examine the influence of variations in early childcare histories on the psychological development of infants and toddlers from a variety of family backgrounds. This general objective was addressed through a prospective, longitudinal study of the experiences of 1,364 children and their families, which took into account the complex interactions among child characteristics and those of the human and physical environments in which the children were reared.
Research GoalsThe specific research aims were as follows:
Examining the relationship between infants' childcare arrangements (defined in terms of hours, type, quality, and stability of care and the age at which the child entered care) and children's concurrent and long-term development. Specifically, the study investigated the association between children's experiences in childcare and their social, emotional, language, and cognitive development. The social-emotional assessments included measures of attachment, independence, compliance, behavior problems, prosocial and antisocial behavior, and general competence in interacting with peers. Cognitive variables include general developmental level and problem solving skills. Language assessments incorporated measures of children's expressive and receptive communicative competence.
Examining whether the social ecology of the home moderates the effects of childcare, i.e., whether children from different home environments are differentially affected by similar childcare experiences. The study examined the moderating effects of parents' values and attitudes, psychological adjustment and mental health, stress and social support, child-rearing practices, time use, interactions with the child, the marital relationship, and family demographics.
Examining whether individual differences among children moderate the effects of infant care on child development. The study examined the moderating effects of such child characteristics as age, sex, health, birth order, and temperament.
Identify demographic and family characteristics associated with families' childcare decisions. The study examined whether specific childcare arrangements are related to the parents' social class, marital status, psychological adjustment and personality, child-rearing values and attitudes, parenting practices, stress, social support, marital relationship, and the availability of childcare in the community.
Provide a natural history of infant care in the 1990s, and help establish a baseline of data pertaining to the kinds of care being used by families. Whereas other national databases, such as those provided by the United States Census Bureau, provide static estimates of the number of children in different types of childcare, this network study supplements that knowledge with longitudinal data on successive enrollments into day care at various ages, patterns of arrangements used concurrently and over time, and the stability of arrangements during the first three years of life. One of the most valuable aspects of the collaborative study is the opportunity it provides to obtain a more complete and accurate picture of patterns of infant care used by families today. Census surveys use only gross categories of care (e.g., center vs. in-home). In this study, more fine-grained information regarding the types of centers and home-care facilities was gathered.
Examine the consequences for families of maternal employment and childcare choices. Family relationships, parental mental health, family stress, and so on, are not just inputs to child development or moderators of childcare effects, they are also outcomes. High-quality childcare may alleviate family stress and enhance parental adjustment. Low-quality childcare may add to the stress parents experience. Although the main focus in the study was on the effect of childcare on the child, the study also examined the effect of childcare on the family.
Identify demographic characteristics of childcare associated with childcare quality. Of interest to policy makers is another aspect of the study, the investigation of those regulatory characteristics that predict care of higher quality. These characteristics included the level and type of caregiver training, the size of the childcare group, the auspices of the childcare program (public/private, profit/nonprofit, independent/chain, employer-sponsored/church-based), whether the facility was licensed or unlicensed, the level of payment and fees, and whether the caregiver was a relative of the family.
158 data files were compiled for this study and are organized into 4 main groups:
Analytical Data Sets (ADS)-- The raw data were examined and composites defined by small groups of individual principal investigators according to the demographic, family, childcare, and child outcome content of the data. The psychometric and distributional qualities of the variables along with site differences were examined. A set of variables that was psychometrically and distributionally acceptable to be used in analytic analyses was designed to test the study hypotheses. These data files comprise Parts 1-19 of the study data material.
Supplemental Data Sets -- New and revised analysis variables as well as across-time mean scores and primary composites were produced as supplements to the original Analytical Data Sets. These data files are Parts 20-26 of the study data material.
Raw Census-Related Data Sets -- Files were produced using geocoded addresses for survey respondents to match block group-level data from the 1990 and 2000 Censuses for investigators to create additional measures of interest from the geocoded addresses. These data files comprise Parts 27-30 of the study data material.
Raw Data Sets -- The raw data were made available and comprise Parts 31-158 of the study data material.
Included in this phase of the study are the output of several third-party software programs that were used during Phases II, III and IV to collect data for specific tasks or activities. These programs produced one output data file per subject, which were combined to produce some of the raw data files for those studies. The original program output is included as expanded documentation in this phase of the study.
Training WorkshopA three-day summer training workshop on the SECCYD was put on by NICHD at the Inter-University Consortium for Political and Social Research in Ann Arbor, Michigan in 2010. The binder from that workshop, which includes the Powerpoint slides used during presentations, are freely available to the public as part of the study documentation.