0
Dissertation: Physical Education and Academic Performance – Literature Review. Part V
Posted by Essays on Jan 20, 2010 in Dissertation
The fact that the subjects were randomly selected reduced the chances of threats to internal validity. The sample size was derived from a wide cross-section of socioeconomic status and ethnic groups. The weakness of the study was the fact that there were no control schools in phase II. Furthermore, there were some reported differences in [...]


