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Estimating WISC-IV indexes: proration versus linear scaling.
Estimating WISC-IV indexes: proration versus linear scaling.
- Source :
-
Journal of Clinical Psychology . Oct2008, Vol. 64 Issue 10, p1175-1180. 6p. 3 Charts. - Publication Year :
- 2008
-
Abstract
- This investigation compared proration and linear scaling for estimating Wechsler Intelligence Scale for Children–Fourth Edition (WISC-IV) verbal comprehension (VCI) and perceptual reasoning (PRI) composites from all relevant two subtest combinations. Using 57 primary school students and 41 clinical referrals, actual VCI and PRI scores were highly correlated with estimated index scores based on proration and linear scaling (all rs≥.90). In the school sample, significant mean score differences between the actual and estimated composites were found in two comparisons; however, differences between mean scores were less than three points. No significant differences emerged in the clinical sample. Results indicate that any of the two subtest combinations produced reasonably accurate estimates of actual indexes. There was no advantage of one computational method over the other. © 2008 Wiley Periodicals, Inc. J Clin Psychol 64:1–6, 2008. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00219762
- Volume :
- 64
- Issue :
- 10
- Database :
- Academic Search Index
- Journal :
- Journal of Clinical Psychology
- Publication Type :
- Academic Journal
- Accession number :
- 34170375
- Full Text :
- https://doi.org/10.1002/jclp.20518