Performance discrepancies on the California Verbal Learning Test-Children's Version in the standardization sample

Area of Science:

• Neuropsychology
• Child Psychology
• Educational Psychology

Background:

• The California Verbal Learning Test-Children's Version (CVLT-C) is a key tool for assessing verbal learning and memory in children.
• Interpreting discrepancies between subtest scores is crucial for a comprehensive understanding of a child's cognitive profile.
• Establishing the clinical significance of score discrepancies requires understanding their base rates within the standardization sample.

Purpose of the Study:

• To evaluate statistically significant discrepancies between key quantitative variables of the CVLT-C.
• To determine the base rate of specific score discrepancies within the CVLT-C standardization data.
• To provide guidelines for interpreting the clinical significance of CVLT-C score profiles.

Main Methods:

• Analysis of standardization data from the California Verbal Learning Test-Children's Version (CVLT-C).
• Statistical evaluation of discrepancies between standard scores of CVLT-C subtests.
• Calculation of base rates for specific z-score point discrepancies.

Main Results:

• Many apparently large discrepancies between standard scores on the CVLT-C are relatively common.
• Discrepancies of 1.5 z-score points or more in the hypothesized direction were uncommon for 3 of 4 contrasts, suggesting clinical significance.
• A discrepancy of 1 z-score point or more in the hypothesized direction met the criterion for clinical significance in a fourth contrast.

Conclusions:

• Interpretation of CVLT-C profiles should prioritize specific quantitative variables.
• Consideration of the base rates of discrepancies between z scores is essential for clinical interpretation.
• This approach aids in identifying clinically significant patterns in children's verbal learning and memory assessments.