Abstract

A didactical note on the use of statistical procedures for longitudinal data. A guide for researchers in Sport Sciences This report aims at being a didactical tool to instruct in the use of statistical procedures related to the analysis of longitudinal data sets. We shall use an example of growing complexity, so that we may introduce the basic ideas of a single group design and the essence of hypothesis testing. The main results of the t test and analysis of variance shall be analyzed. These results are formally and substantively interpreted, and an alternative way of thinking is introduced, as a contrast to the binary results of the hypothesis testing. We shall focus on graphic displays of data. Finally, hierarchical modeling is introduced, mainly its richness and flexibility in terms of interpretation of the data structure at hand.

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