The development of primary process in children's Rorschachs

Three cohorts of normal Italian schoolchildren, 55 boys and 47 girls, were given Rorschachs at ages 6, 7, and 8; 9, 10, and 11; and 12 and 13. Regardless of sex or score, primary process (scored by Holt's method) tends to diminish with age; but significantly among the boys only for the sums of all primary process, of Level 2 responses, and of content. Measures of control showed similar developmental trends, mean form level advancing significantly in the total sample and among girls. Even stronger trends within cohorts were confounded by retest effects.