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Yurek, Leo A.; Vasey, Joseph; Sullivan Havens, Donna – Evaluation Review, 2008
Longitudinal research designs involve data collection at multiple time points to measure change over time. Therefore, identification of the same respondents is essential at each time point so that data from the same respondents can be matched for comparison over time. Subject-generated identification codes permit an anonymous means to track…
Descriptors: Longitudinal Studies, Data Collection, Hospitals, Nurses