Related Experiment Videos
Simultaneous-successive factor structure of the WISC-R: a validation study
Perceptual and Motor Skills
|October 1, 1986
Summary
This study found that the Wechsler Intelligence Scale for Children--Revised (WISC-R) does not have a clear Simultaneous-Successive factor structure. Therefore, clinicians should avoid using this two-factor model for WISC-R interpretation and interventions.
Area of Science:
- Psychometrics
- Child Psychology
Background:
- The Wechsler Intelligence Scale for Children--Revised (WISC-R) has been proposed to have a Simultaneous-Successive factor structure.
- Previous validation attempts of this model using WISC-R subtests were found to be unreliable.
Purpose of the Study:
- To test the validity of the Simultaneous-Successive two-factor model for the WISC-R.
- To compare the WISC-R's factor structure with the Kaufman Assessment Battery for Children (K-ABC), which has a clear Simultaneous-Sequential structure.
Main Methods:
- Factor analysis was used to examine the WISC-R's factor structure.
- The study involved 36 children aged 6.5 to 12.5 years.
- The K-ABC served as a comparative measure with a known factor structure.
Main Results:
- The present study's results do not support a significant Simultaneous-Successive factor structure for the WISC-R.
- The factor structure of the WISC-R was found to be inconsistent with the proposed two-factor model.
Conclusions:
- Clinicians should exercise caution when interpreting the WISC-R using the proposed Simultaneous-Successive model.
- The findings suggest that the WISC-R may not be adequately represented by a Simultaneous-Successive factor structure for diagnostic or remedial purposes.