An Inquiry about Some Methodological Issues in Sport Psychology
The following methodological issues in sport psychology were studied in this paper: 1. Causality, in genenal, can only be determined through experimental study, and it is quite difficult to draw a causal conclusion from descriptive and relational studies. If the findings of descriptive and relational studies are explained as causality, mistakes and confusions may be made; 2. There will come into being the regressive phenomenon when two variables are uncompletedly related to each other, so the regression law. to some extent, can be helpful in explaining the fluctuation of coaches' and athletes' performance and emotion. The function of this statistical law on sports can not be neglected; 3. Recovery rate of questionnaire investigation has a significant effect on the reliability of the findings in this kind of study. So in some cases it is necessary to determine the effective degree the unrecalled questionnaires induced on the statistical error when statistical inferences are made and to give the reliable interval.