Flowers J V
J Clin Psychol. 1978 Jul;34(3):744-7. doi: 10.1002/1097-4679(197807)34:3<744::aid-jclp2270340334>3.0.co;2-p.
Eighty Ss were given the Rathus assertion schedule and a separate test in which their clarity of goals in various interpersonal situation was assessed. It was found that there was a direct relationship between assertion and goal clarity scores; more assertive Ss had greater goal clarity. The Rathus assertion schedule and half of the goal clarity test were administered to 24 Ss, who then were assigned randomly to 10 sessions of either an assertion training group or an insight therapy group. After treatment, the Rathus assertion schedule and the other half of the goal clarity test were administered to the 24 Ss. While there was no difference between the two groups prior to treatment, after treatment the assertion group demonstrated significantly greater goal clarity and significantly greater change on the Rathus assertion schedule than did the insight group.