Differential classification of hebephrenic and paranoid schizophrenics from case material

A study of certain schizophrenic dimensions and their relationship to double alternation learning.

“…Diagnosis established by the ward staff on admission was accepted as the criterion of the paranoid-nonparanoid dimension. Since it appears that this discrimination can be made reliably (e.g., Orgel, 1957), a more refined method of categorization was deemed unnecessary. Three of the four raters who participated in the study were unaware of the subject's diagnosis at the time of rating.…”

Production of associative sequences in schizophrenia and chronic brain syndrome.

“…The 5s were: 30 paranoid schizophrenics and 30 hebephrenic schizophrenics, chosen according to objective nosological criteria (Orgel, 1957); 30 chronic brain syndrome epileptics of unequivocal diagnoses, 11 and 30 controls with no known history of psychiatric disturbance. The four groups, each of 15 male and 15 female 6s, were comparable for age, years of education, Stanford-Binet vocabulary IQ (Cureton, 1954), and length of hospitalization (institutionalized groups).…”