A comparison of the Stanford-Binet abbreviated and complete forms for developmentally disabled children

✍ Scribed by Allan S. Bloom; Steven H. Klee; Larry M. Raskin

• Publisher: John Wiley and Sons
• Year: 1977
• Tongue: English
• Weight: 339 KB
• Volume: 33
• Category: Article
• ISSN: 0021-9762
• DOI: 10.1002/1097-4679(197704)33:2<477::aid-jclp2270330231>3.0.co;2-a

✦ Synopsis

Three abbreviated versions of the Stanford-Binet were reviewed and compared for 50 chldren with developmental disabilities. The children ranged in age from 6 years -0 months to 15 years -11 months. While the IQs obtained from the abbreviated forms correlated highly with the com lete Binet I&, it was felt that the 2-item test yielded too many "misses" botE in terms of I& and classification to be of significant value for use with developmentally disabled children. Although the Terman and Merrill4-item and Wright versions both yielded considerable "misses" in classification, they were believed to be of definite value to the time-harried examiner. Caution was advised, howevef,.in the use of abbreviated-form IQs BS a basis for important diagnostic decisions.

Three short forms of the Stanford-Binet Intelligence Scale have been developed. Terman and Merrill (1937) introduced an abbreviated form in which 4 items were selected, a t each age level, to be administered. This form was reported to save one-third of total testing time. Research by Wright (1942) showed an average difference of only 1.3 I& points between the full and short forms. This sample contained 477 persons who ranged in age from 2 years -11 months to 56 years. However, 11% of the cases differed by more than 5 I& points. Gordon and Forehand (1972) reported a correlation of .99 between Mental Ages on the two forms for 50 children who ranged in age from 1.9 to 8.5 years.

Wright developed a variation of the Terman-Merrill short form in which the selected items were given, but where the full complement was given to obtain basal and ceiling ages. Wright compared this modified short form t o full scale I& scores and found a mean difference of only .62 I& points, with a difference of greater than 5 I& points in only 1.5% of the cases.