Two hundred males and 212 females in grades three through eight were tested for conformity to peers using Asch-type stimuli and a modified Crutchfield procedure. The results showed that, with difficulty level controlled, conformity decreased with age between eight and eleven years and then increased to age thirteen. Discrepancies among earlier investigations in this area were discussed. Explanations for these discrepancies in terms of the subjects' initial ability or ambiguity of the task were seen as inadequate. An alternative explanation in terms of a failure to recognize a curvalinear relationship between the variables is offered. The results of this study were found to be consistent with the explanation in an earlier study that conformity is affected by age only indirectly through its effects on certain situational variables. These variables include changes in social organization and changes in flexibility and generality of norms. (Author)