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 | Applied Longitudinal Data Analysis: Modeling Change and Event Occurrence (1st Edition) by Judith D. Singer, John B. Willett Hardcover, 644 Pages, Published 2003 ISBN-10: 0-19-515296-4 / 0195152964 ISBN-13: 978-0-19-515296-8 / 9780195152968 Change is constant in everyday life. Infants crawl and then walk, children learn to read and write, teenagers mature in myriad ways, the elderly become frail and forgetful. Beyond these natural processes and events, external forces and interventions instigate and disrupt change: test scores may r | |