Related Experiment Videos
Adaptive Behavior Scale, Part Two: predictive efficiency of severity and frequency scores
American Journal of Mental Deficiency
|January 1, 1981
Summary
The severity scoring system for the Adaptive Behavior Scale, Part Two, demonstrates superior predictive validity compared to frequency scoring. This finding supports the severity system for assessing individuals with intellectual disabilities.
Area of Science:
- Psychometrics
- Developmental Psychology
- Clinical Psychology
Background:
- The Adaptive Behavior Scale, Part Two (ABS-2) is utilized to assess adaptive functioning.
- Evaluating the scoring methods of the ABS-2 is crucial for accurate clinical interpretation.
- Previous research has not definitively established the superiority of severity versus frequency scoring.
Purpose of the Study:
- To compare the predictive validity of severity and frequency scoring methods for the ABS-2.
- To determine which scoring method better aligns with independent clinical judgments of symptomatology.
Main Methods:
- Ratings from seven groups of individuals with intellectual disabilities were analyzed.
- Two scoring methods (severity and frequency) of the ABS-2 were correlated with independent clinical impressions.
- Statistical analysis focused on predicting the variance in the criterion measure.
Main Results:
- The severity scoring system explained approximately 11% more of the criterion variance than the frequency scoring system.
- Severity scores showed a stronger correlation with independent clinical judgments.
Conclusions:
- The severity scoring system for the ABS-2 possesses greater construct and predictive validity.
- Clinicians may benefit from utilizing the severity scoring method for more accurate assessments of adaptive behavior in individuals with intellectual disabilities.