The Group Test of Openness (GTO) was shown to have a moderate degree of stability. Predictive validity was demonstrated through a 14-week high school course in counseling skills in which scores on the GTO increased. GTO focused on behavior within a group and had an objective method of scoring. (Author)

Affirmed that verbal behaviors (time speaking, initiated assertions, referrals received and first-person statements) were related to self-traits as measured by personality measures and a subjective self-report. The results are indicative of a proactive-reactive dimension of social interaction from both self and behavioral perspectives. (Author)