PROBLEMKaren's'') conceptualization of the "pathogenic" relationship between the male schizophrenic child and his mother appears to have received empirical support in several studies ( * * 3 , 4 , in which ('pathogenesis" was defined operationally, through the use of the TAT, as an interaction between two persons in which the dominant individual either ignores the expressed needs of the dependent individual or meets his own needs a t the expense of the dependent individual. I n each case, mothers of male schizophrenic children told a significantly greater proportion of "pathogenic" stories than matched controls.The purpose of this study was to extend the concept of "pathogenesis" t o male delinquency.
METHOD'The Ss were five sets of parents of normal, delinquent, and schizophrenic boys. Both children and parents were matched on the basis of age, sex, education, and social class. The schizophrenic children were so diagnosed on the bases of interviews by two or more psychiatrists and psychological tests. The deiinquent children were referred by a court or legal agency for such specific behaviors as car theft and promiscuity. The normal children were nominated by classroom teachers.TAT stories were tape recorded, later typed on separate sheets of paper and presented randomly to the author, a clinical psychologist with approximately 5 years of experience, who blindly classified all stories that involved an interaction between two persons as (a) "pathogenic" or (b) "benign". "Pathogenic" stories were defined above. When the dominant person met or simply acknowledged the needs of the dependent person, the story was scored "benign" (B). Half of the randomized stories were similarly scored by a second judge, an advanced graduate studcnt in clinical psychology. A "pathogenic" score was tabulated for each S according to the formula: P/P + B, when P is the number of stories judged "pathogenic" and B the number of stories judged "benign".
RESULTSInterscorer reliability for the two judges as measured by the Pearson productmoment correlation was .79. Table 1 indicates the mean "pathogenic" scores attributed by Judge I to the three groups of parents. T-tests for matched pairs indicated that both the mothers of the delinquent and normal boys told a significantly smaller proportion of "pathogenic" storics than did the mothers of the schizophrenic boys (t = 2.90, p . < .05; 1 = 2.60, p < .05, respectively). Table 1 shows that the mothers of the delinquent and normal boys told essentially the same praportion of "pathcgenic" stories.Further t-tests for matched pairs indicated that the three groups of fathers did not differ significantly from each other. However, Table 1 shows that the fathers of the delinquent and schizophrenic boys told almost the same proportion of "patho-*The author is grateful to Martha Werner, Section on Twin and Sibling Studies, Adult Psychiatry Branch, NIMH, and her colleagues for making the TAT stories available to him.