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Boker, Steven M.; Nesselroade, John R. – Multivariate Behavioral Research, 2002
Examined two methods for fitting models of intrinsic dynamics to intraindividual variability data by testing these techniques' behavior in equations through simulation studies. Among the main results is the demonstration that a local linear approximation of derivatives can accurately recover the parameters of a simulated linear oscillator, with…
Descriptors: Data Analysis, Individual Differences, Measurement Techniques, Simulation
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Rindskopf, David M.; Strauss, Shiela M.; Falkin, Gregory P.; Deren, Sherry – Multivariate Behavioral Research, 2003
This article examines whether relationships between individual characteristics and HIV status can be identified when self-report data are used as a proxy for HIV serotest results. The analyses use data obtained from HIV serotests and face-to-face interviews with 7,256 out-of-treatment drug users in ten sites from 1992 to 1998. Relationships…
Descriptors: Sexually Transmitted Diseases, Individual Characteristics, Measurement Techniques, Data Analysis