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Torche, Florencia; Warren, John Robert; Halpern-Manners, Andrew; Valenzuela, Eduardo – Social Forces, 2012
Panel surveys are widely used in sociology to examine life-course trajectories and to assess causal effects. However, when using panel data researchers usually assume that the act of measuring respondents' attitudes and behaviors has no effect on the attributes being measured or on the accuracy of reports about those attributes. Evidence from…
Descriptors: Evidence, Control Groups, Research Design, Substance Abuse