Variations in WISC-R patterns of learning disabled children

Area of Science:

• Educational Psychology
• Neuropsychology

Background:

• Learning disabilities present complex cognitive profiles.
• The Wechsler Intelligence Scale for Children-Revised (WISC-R) is a key tool for assessing intellectual abilities in children.
• Understanding intellectual changes in learning disabled students over time is crucial for effective intervention.

Purpose of the Study:

• To evaluate changes in intellectual functioning of learning disabled students after special program placement.
• To compare WISC-R scores of learning disabled students to a normative sample.
• To examine individual variability within the learning disabled group.

Main Methods:

• Longitudinal assessment of 19 learning disabled students using the WISC-R at diagnosis and after intervention.
• Group analyses of Verbal IQ, Performance IQ, and Full-Scale IQ scores.
• Comparison of WISC-R indices (V-P discrepancies, scatter) to standardization data and Bannatyne categories.

Main Results:

• Observed fluctuations in Verbal, Performance, and Full-Scale IQs and V-P discrepancies over time.
• Identified small but significant differences in Verbal, Performance, and V-P scatter indices compared to the normative sample.
• Confirmed the general Bannatyne category pattern for learning disabled children but noted substantial individual differences.

Conclusions:

• Special program placements may lead to shifts in intellectual performance profiles for learning disabled students.
• While group patterns exist, individual cognitive profiles within the learning disabled population are highly variable.
• The WISC-R provides valuable insights into the dynamic nature of intellectual abilities in learning disabled children.