A Data Guide for this study is available as a web page and for download. The National Longitudinal Study of Adolescent to Adult Health (Add Health), 1994-2008 [Public Use] is a longitudinal study of a
This data set contains data on Malaysians’ health status, internet and social media usage, mental health and protective behaviors during the COVID-19 Pandemic.
TRAILS (TRacking Adolescents' Individual Lives Survey) is an ongoing, multidisciplinary research on the psychological, social and physical development of adolescents and young adults. More than 2700 p
The Saxonian longitudinal study is a longitudinal study in the social sciences. It was begun in 1987 and surveys the change in political attitudes of young adults in the new federal states of the form