A longitudinal study (or longitudinal survey, or panel study) is a research design that involves repeated observations of the same variables (e.g., people)...

A prospective cohort study is a longitudinal cohort study that follows over time a group of similar individuals (cohorts) who differ with respect to certain...

Genetic Studies of Genius, later known as the Terman Study of the Gifted, is currently[update] the oldest and longest-running longitudinal study in the...

independently to each of a parallel group of bit streams. Longitudinal study, a research study that involves repeated observations of the same items over...

exercise, and common medications such as aspirin, is based on this longitudinal study. It is a project of the National Heart, Lung, and Blood Institute...

NCES oversees national and international assessments, conducts longitudinal studies, and develops standardized data systems to support policymakers,...

population. Cross-sectional studies are descriptive studies (neither longitudinal nor experimental). Unlike case-control studies, they can be used to describe...

series, cross-sectional, or panel data. A study that uses panel data is called a longitudinal study or panel study. In the multiple response permutation procedure...

The Irish Longitudinal Study on Ageing (TILDA) is a nationally representative longitudinal study of the population of Ireland aged 50 and above. TILDA...

A cohort study is a particular form of longitudinal study that samples a cohort (a group of people who share a defining characteristic, typically those...

The Grant Study is an 86-year continuing longitudinal study from the Study of Adult Development at Harvard Medical School, started in 1938. It has followed...

The Study of Mathematically Precocious Youth (SMPY) is a prospective longitudinal survey study of persons (mostly in the United States) identified by scores...

nationally representative longitudinal study has shown that this relationship is entirely mediated by school performance. Multiple studies conducted in Scotland...

internal investigation as of July 2018. In 2016, the results of a long-term study by the US National Institute of Health (NIH) were released that documented...

collected in a longitudinal study in which change over time is assessed. A popular repeated-measures design is the crossover study. A crossover study is a longitudinal...

and 2021. The Graduate Longitudinal Study New Zealand will be the most comprehensive study of a country's graduates. The study aims to understand the...

exclusive attraction to the same sex. The results of a large-scale, longitudinal study by Savin-Williams, Joyner, and Rieger (2012) indicated that stability...

psychosocial, time use). 2002 and 2004 saw the introductions of the English Longitudinal Study of Ageing (ELSA) and the Survey of Health, Ageing and Retirement in...

study or crossover trial is a longitudinal study in which subjects receive a sequence of different treatments (or exposures). While crossover studies...

points when re-tested. For example, many children in the famous longitudinal Genetic Studies of Genius begun in 1921 by Lewis Terman showed declines in IQ...

members, or 938 people, participated. This is unprecedented for a longitudinal study, with many others worldwide experiencing more than 40% drop-out rates...

The Avon Longitudinal Study of Parents and Children (ALSPAC), also known as Children of the 90s and formerly the Avon Longitudinal Study of Pregnancy...

The Longitudinal Study of Youth is an NIH-NIA funded study by the University of Michigan which has been studying Generation X since 1987. The study asked...

typically went back to the average levels. This interview-based study, while not longitudinal, was the beginning of a now large body of work exploring the...

as a trait into adult life, with various consequences studied in longitudinal studies of giftedness over the last century. These consequences sometimes...

medical decisions in the future. Postmortem researchers conduct a longitudinal study of the brain of an individual, who has some sort of phenomenological...

The China Study: The Most Comprehensive Study of Nutrition Ever Conducted and the Startling Implications for Diet, Weight Loss and Long-term Health is...

Cross-sectional study: involves data collection from a population, or a representative subset, at one specific point in time. Longitudinal study: correlational...

Science/Sociology and the administrative director of the Wisconsin Longitudinal Study (WLS) of the Department of Sociology at the University of Wisconsin–Madison...

Understanding Society, the UK Household Longitudinal Study (UKHLS), is one of the largest panel surveys in the world, supporting social and economic research...