The purpose of this study is to investigate the relation between two of the most important indices of adjustment: self-concept and sociometric status.

The problem of this study was to determine the relationship between the nature of an individual's self-concept and belief system to his orientation toward internal versus external control of reinforcement. This study was designed to investigate the relationship of two variables, self-concept and open versus closed belief system, to a third variable, locus of control.

It was the purpose of this present study to investigate the effects of two types of music, tonic and sedative, on the gross motor activity of profound mental retardates. The primary objective was to determine if therapeutic benefits resulting from the application of music could be extended to profound retardates as has already been demonstrated with other levels of retardation.

It was the purpose of this study to investigate the nature of the relationships among anxiety, achievement, and intelligence. It was deduced that anxiety and intelligence work together mainly at the level of average intelligence. At this level, the addition of drive in the form of anxiety increases performance level, while a lack of drive or anxiety decreases that level. The influence of anxiety on academic achievement is insignificant at other levels due to the overriding effects of intelligence.