CHAPTER 18
DATA REDUCTION USING PRINCIPAL COMPONENTS ANALYSIS
INTRODUCTION
Sometimes when studying sport and exercise, researchers deal with multiple variables some of which may be related. This may happen in sports psychology and sports management where questionnaires contain numerous individual questions. There are other areas such as sports performance where multiple aspects of performance are represented by the set of variables used. Analysing these variables can lead to a cumbersome results section of a paper or thesis due to the volume of variables involved in the study. Factor analysis and principal components analysis are data reduction techniques that identify related variables and produce a smaller set of broad factors or components ...
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