Eighteen college students participated in a 24-hour marathon group and responded to the California Psychological Inventory (CPI) immediately before and after the experience. The results disclosed significant positive changes at the .05 level on 11 of 18 scales on this inventory. (Author)

Presents a method of testing a class that is designed to reveal the level of thinking of the individual student in the context of the science instruction that he is receiving. (JR)

The factor-analytic history of the isolation and identification of the cognitive ability construct known as Number or Numerical Facility is described. Empirical documentation from the psychometric literature is discussed, and examples of items from a variety of tests which have defined and been associated with the Number factor are included to…

The S-R Inventory of General Trait Anxiousness was administered to samples of normal youth, normal adult, neurotic, and psychotic subjects. The practical and theoretical uses of the inventory are discussed, and it is specifically indicated how the inventory could be used to extend the Speilberger state-trait anxiety theory. (Author)

The self concept literature generally shows that different measures of self acceptance and self satisfaction are positively related to psychological adjustment and several measures of defensiveness. (Author/DEP)

This paper presents a framework which may clarify differences in the definition of empathy, and examines various assessment techniques. In some instances inconsistencies were found between the conceptual and operational definitions. (Author)

Eysenck's PEN Inventory and Lanyon's Psychological Screening Inventory were given to groups of male and female American undergraduates from a state university. A factorial analysis of the intercorrelations showed that three major factors could account for the bulk of correlations among the nine differently labeled characteristics covered by the…

Research involving perceived internal versus external control of reinforcement as a personality variable has been expanding at a rapid rate. This article discusses (a) the place of this construct within the framework of social learning theory, (b) misconceptions and problems of a theoretical nature, and (c) misuses and limitations associated with…

Paper presented at the annual meeting of the American Orthopsychiatric Association (Chicago, 1968).

Each item of the Rotter Locus of Control Scale and 28 of the 80 items of the Piers-Harris Children's Self Concept Scale were revised because of syntax or vocabulary that were considered to be problematic for deaf adolescents. The original and modified forms of each instrument were administered to 90 deaf adolescents from four residential schools.…