Factors common to the ISI and the 16PF inventories.

This study tested for five higher-order dimensions hypothesized to be common to the Interpersonal Style (ISI) and the 16PF questionnaires. A sample of detoxified alcohol dependent inpatients (N = 50) were administered the ISI and the 16PF on two separate occasions. The 31 scale intercorrelations were analyzed by the method of principal axes. An oblique factor structure obtained by use of the Promax procedure confirmed the factors expected. These were interpreted as representing Self Control, Interpersonal Involvement or Exvia, Emotional Stability or reversed 16PF Anxiety, Independence, and Level of Socialization. At least two or three closely similar higher-order factors have been isolated on each of three other popular inventories (PRF, CPI and GZTS). The existence of such common dimensions should facilitate the interpretation and confirmation of distinctive score profiles.