Validity of the Stanford-Binet Intelligence Scale-IV: its use in young adults with mental retardation.
The validity of the Stanford Binet-IV (SB-IV) was assessed. This test and the WAIS-R and WRAT-R were administered to 42 adults previously classified with mild to moderate mental retardation. Validity coefficients between scores on the SB-IV and the other two measures were significant. The mean IQ on the SB-IV (mean Test Composite = 43.26) was significantly lower than that on the Wechsler Adult Intelligence Scale-Revised--WAIS-R (mean Full-Scale IQ = 57.91). With regard to the internal validity of the SB-IV, the intersubtest relationships of each of the four Area scores correlated significantly with the Test Composite (range = .66 to .91). Verbal Reasoning earned the highest correlation (.91). Results support the SB-IV's concurrent, criterion-related, and internal validity for use with young adults who have mental retardation.
Nelson
W M
WM
Department of Psychology, Xavier University, Cincinnati, OH 45207-6511, USA.
Dacey
C M
CM
D000293:Adolescent; D000328:Adult; D005260:Female; D006801:Humans; D008607:Intellectual Disability / Q000175:diagnosis*; D008297:Male; D011594:Psychometrics / Q000592:standards*; D015203:Reproducibility of Results; D013195:Stanford-Binet Test / Q000592:standards*