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The Michigan Metro Area Communities Study (MIMACS) is a panel survey of select Michigan communities residents aged 18 and older. Flint is one of the communities included in MIMACS. The initial survey in Flint was conducted in 2022 and the sample was drawn from an address-based probability sample of all occupied Flint households. The 3rd survey wave, collected between January 15 - March 18, 2024, researchers invited 823 previously enrolled panelists and 1,554 invitations to a randomly selected address-based refreshment sample of Flint households to participate in a self-administered online or interviewer-administered telephone survey. Survey topics included: Household Composition, Residence and Housing Status; Health, Social Determinants of Health, Long COVID, Mental Health; Disability; Perceptions of Neighborhood; Transportation Mode; Financial Precarity; Perception of Control; Voting; Employment; Demographics.

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Quarterly longitudinal panel of GitHub engineering velocity for 55 venture-backed startups, 219 startup-period observations across 5 quarters (Q2 2025 through Q2 2026). Each observation records rolling 14-day commit velocity, unique-contributor count, new-repository creation, and a deterministic four-class acceleration label. The panel is descriptive; the accompanying analysis reports a 3.4x association between velocity acceleration with low contributor concentration and later Series A outcomes. CC BY 4.0. Companion working paper: SSRN 6606558, DOI 10.2139/ssrn.6606558. Website: https://gitdealflow.com.

The study team has developed a novel Remote Temperature Monitoring (RTM) sensor which automatically uploads temperature data to the Cloud and integrates with both a clinician’s dashboard and an app on the caregiver’s cell phone to allow for real-time monitoring of CRO use.  This is the first study to attempt to validate the RTM sensor in a clinical setting.

Tsogolo la Thanzi (TLT) is a longitudinal study in Balaka, Malwai designed to examine how young people navigate reproduction in an AIDS epidemic. Tsogolo la Thanzi means "Healthy Futures" in Chichewa, which is Malawi's most widely spoken language.

The 2019 Household Listing Data are the result of a new census of the original catchment area, 10 years after the initial study began. These data are supplemental to the main TLT series, providing insights into how the Balaka area developed over the past 10 years. It includes data from all persons living within 7 kilometers of the TLT research center.

This study examines how demand for public goods shaped state-building in historical China. The dataset is a grid-cell–by-century panel dataset covering historical China from roughly the 2nd century BCE to the 19th century CE. Each observation is a ~1,000 km² grid cell (id_grid) in a given century (id_century). It combines multiple measures of state capacity (e.g., administrative center density, tax revenue, length of roads, number of post stations), potential drivers of state building (e.g., proximity to foreign-war frontline, proximity to the Yellow River, population density, distance to capital, and trade routes), and measures of local institutions (e.g., lineages, Buddhist temples, and ethnic-minority leadership). The dataset enables a quantitative analysis of the evolution of the state-locality relationship over time.

Guided by dynamic and ecological conceptualizations of long-term resilience, this study examined whether psychosocial services delivered within juvenile residential facilities (RFs) were successful in promoting positive youth trajectories following release, whether facility violence, and, alternatively, staff connectedness influenced the effectiveness of services, and whether effects were further qualified by youth trauma history. Data for the project were drawn from the Pathways to Desistance study, which followed a large sample of juvenile offenders over seven years. A subset of 667 participants who completed release interviews following an RF stay and completed follow-up interviews were included in this study.

This collection includes the syntax files used to clean and analyze the Pathways to Desistance study Subject Measures and Release Measures data. More information about these collections and how to access these data is available on their study pages.

In 1995-1996, the MacArthur Midlife Research Network carried out a national survey of over 7,000 Americans aged 25 to 74 (ICPSR 2760). The purpose of the study was to investigate the role of behavioral, psychological, and social factors in understanding age-related differences in physical and mental health.

With support from the National Institute on Aging, an initial follow-up of the original Midlife Development in the United States (MIDUS) samples was conducted in 2004 (MIDUS 2). The daily stress and cognitive functioning projects were repeated at MIDUS 2; in addition the protocol was expanded to include biomarkers and neuroscience. In 2005, a baseline sample of 592 African Americans from Milwaukee was added to MIDUS to examine health issues in minority populations.

In 2013, a third wave (MIDUS 3) of survey data was collected on longitudinal participants. Data collection for this follow-up wave largely repeated baseline assessments (e.g., phone interview and extensive self-administered questionnaire), with additional questions in selected areas (e.g., economic recession experiences, optimism and coping, stressful life events, and caregiving). A third wave of cognitive functioning data and a second wave of the Milwaukee sample were also collected. Data collection for the daily diary, biomarkers, and neuroscience is ongoing. This dataset includes mortality information for all known MIDUS decedents (N=2,822) from the Core National and Milwaukee samples as of December 2025.