 Chandler  found that chronically delinquent boys exhibited lower role taking abilities so much so that their role taking ability was comparable to the role taking ability scores of non-delinquent children nearly half their age.
<meaning-changed>  Chandler  found that chronically delinquent boys exhibited lower role taking abilities so much so that their role taking ability was comparable to the role taking ability scores of non-delinquent children nearly half their age.
 Chandler (1973) found that chronically delinquent boys exhibited lower role taking abilities so much so that their role taking ability was comparable to the role taking ability scores of non-delinquent children nearly half their age.