31 boys 13 girls, ranging in ages from 5-17
were graded in terms of the seriousness of their stealing - 22 were Grade VI thieves, and 4 were Grade I thieves (only committed one theft)
in terms of IQ, 15 had a high IQ, 27 had an average IQ, and 2 had a low IQ
the control group consisted of 44 children with similar ages and IQ.
they were also emotionally disturbed but did not steal.
the mothers of all 88 children were also involved in the study and were interviewed to assess the case histories of the children