Assessment of disordered thinking in children and adolescents: the rorschach perceptual-thinking index.
The new Rorschach Perceptual-Thinking Index (PTI; Exner, 2000a, 2000b) was designed to assess thought disorders more accurately than the Schizophrenia Index (SCZI; Exner, 1993). Using a sample of child and adolescent inpatients, we examined the relation of Rorschach variables (PTI, SCZI, M-, and X- %) to thought disorder indexes on a behavior rating scale (Behavior Assessment System for Children; Reynolds & Kamphaus, 1992) and a self-report measure (Personality Inventory for Youth; Lachar & Gruber, 1995). Results indicate that, when used in a categorical manner, the PTI differentiated between those patients with and without elevated thought disorder scores on the other measures. Of all Rorschach variables, M- was most related to the other measures, indicating that this variable may be a particularly robust indicator of thought disorder among children and adolescents.
Smith
S R
SR
Department of Psychiatry, Massachusetts General Hospital and Harvard Medical School, Boston 02114, USA.
Baity
M R
MR
Knowles
E S
ES
Hilsenroth
M J
MJ
D000293:Adolescent; D000704:Analysis of Variance; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D001523:Mental Disorders / Q000523:psychology*; D011569:Psychiatric Status Rating Scales / Q000706:statistics & numerical data; D012016:Reference Values; D012392:Rorschach Test / Q000706:statistics & numerical data*; D013850:Thinking