The present study investigated the factor structure underlying responses to a measure of psychological type, the Personal Preferences Self-Description Questionnaire (PPSDQ). Measures of psychological type have been extremely useful in various applications, including career counseling and in assessing learning styles. Subjects were 422 university…

The Myers-Briggs Type Indicator (MBTI) measures variations in normal personality. The validity of the measure has only recently been examined by analyses of the structure underlying MBTI responses; and these investigations have used exploratory factor analyses, rather than confirmatory factor analytic methods. A confirmatory factor analysis was…

The study reported in this paper investigated the structure of the health locus of control beliefs of elementary school children using second-order factor analysis and the measurement characteristics of the Multidimensional Health Locus of Control (MHLC) Scales. Changes of wording were made in 10 of the MHLC Scales items in order to improve the…