In this study, the Rorschach scoring system for splitting developed by Lern
er, Sugarman, and Gaughran (1981) was applied to the Holtzman Inkblot Techn
ique (HIT). Normal individuals (n = 30), patients with neurotic disorders (
n = 30), patients with borderline personality disorder (n = 30), patients w
ith acute schizophrenia (n = 25) and patients with chronic schizophrenia (I
I = 25) were studied with respect to their use of splitting. Sufficient int
errater reliability was demonstrated for the scoring of splitting in the HI
T. Significant differences between borderline patients, acute schizophrenic
patients, and chronic schizophrenic patients, on tie one hand, and patient
s with neurotic disorders, on the other hand, were dernonstrated. Furthermo
re, it was shown that the indicators of splitting were associated with meas
ures of identity diffusion, primitive defense mechanisms, and other measure
s of psychopathology. The Lerner indicator of splitting proved to be multid
imensional. Different forms of splitting seem to be characteristic of borde
rline patients and schizophrenic patients. The application of the Lerner cr
iteria of primitive defenses to the HIT appears to be promising. (Bulletin
of the Menninger Clinic, 63[3], 520-537).