This study evaluated the functioning of 20 lower class mothers who had participated in the Project Know How (PKH) child care and family life education program at Florida State University. They were compared with control groups of 20 lower class (LCC) and 20 middle class (MCC) mothers on cognitive complexity or ability, interpersonal competence, philosophies of life, and verbal intelligence. Compared to LCC mothers, the PKH mothers showed significantly greater interpersonal competence and verbal intelligence, and displayed greater sympathetic concern as well as more enjoyment through action. MCC mothers showed greater cognitive complexity, interpersonal competence, and verbal intelligence than the PKH group. PKH participants approximated the middle class mothers in social restraint and self-sufficiency. It was inferred that the PKH program accounted for differences between PKH and other lower class mothers. (Author/LY)