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longitudinal study |
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longitudinal study a chronological study in epidemiology which attempts to establish a relationship between an antecedent cause and a subsequent effect. See also cohort study. longitudinal study Diachronic study Statistics A study that follows the same persons over time, evaluating the effects of one or more variables on a processtime Examples Cohort studies, case-control studies. Cf Cross-sectional study, Horizontal study. How to thank TFD for its existence? Tell a friend about us, add a link to this page, add the site to iGoogle, or visit webmaster's page for free fun content. |
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| A similar study conducted with a longitudinal design would give more comprehensive information about these relationships. The term longitudinal design refers to a flexible research approach that can be applied to a wide range of topics involving change over time. Due to the lack of conclusive longitudinal evidence to support the additive orientation, a longitudinal design from a nationally representative data set--the National Longitudinal Study of Adolescent Health--was used to discern whether mother and father involvement offer unique and additive predictive power to understanding problem behavior at later times. |
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