Explore how scientific research by psychologists can inform our professional lives, family and community relationships, emotional wellness, and more.
Work in America™ 2026
Workers weather stress, uncertainty, and AI with psychological capital
Children’s and adolescents’ learning with educational technology
Research-based recommendations to protect and support students’ learning, development, and well-being
APA Publishing products and resources that support research, education, practice and general wellbeing.
Tools for psychologists to do their jobs every day.
Perspectives on aging: Psychology across the lifespanlogin required
Sue Grigson’s research could help change the way we treat addiction
Resources for students, teachers and psychologists at all levels to explore career growth in psychology.
Professional Resilience in Changing Times
Paid Promotional Presentations Designed to Deepen Your Clinical Knowledge
Browse the latest updates from APA, informed by psychological science.
Candice Hargons, PhD, elected as 2028 APA president
APA CEO Arthur C. Evans Jr., PhD, to retire in January 2028
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Learn about key issues impacting psychologists today
Longitudinal Data Analysis Using Structural Equation Models
Longitudinal data are difficult to collect and difficult to analyze. Structural Equation Modeling (SEM) is a valuable way to analyze longitudinal data because it is both flexible and useful for answering common research questions. In this book, McArdle and Nesselroade identify five basic purposes of longitudinal structural equation modeling. For each purpose, they present the most useful strategies and models.
