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Relationships between the Kaufman Brief Intelligence Test and the Wechsler Adult Intelligence Scale-Third Edition
Steven O Walters1, Kenneth A Weaver
1Emporia State University, KS 66801, USA.
Psychological Reports
|August 23, 2003
Summary
The Kaufman Brief Intelligence Test, initially for students, shows strong validity for assessing adult intelligence. This intelligence test accurately correlates with established adult measures, confirming its utility for adult cognitive assessment.
Area of Science:
- Psychology
- Neuroscience
- Educational Measurement
Background:
- The Kaufman Brief Intelligence Test (KBIT) is designed to identify learning difficulties in students.
- Its applicability as an adult intelligence test requires validation.
Purpose of the Study:
- To evaluate the psychometric properties of the KBIT for adult intelligence assessment.
- To determine if KBIT scores correlate with established adult intelligence measures.
Main Methods:
- A study was conducted with 20 undergraduate psychology majors.
- Correlations were calculated between KBIT scores (Composite, Vocabulary, Matrices) and Wechsler Adult Intelligence Scale-Third Edition (WAIS-III) scores (Full Scale, Verbal, Performance).
- Mean score comparisons between KBIT and WAIS-III were performed.
Main Results:
- Very strong positive correlations were observed between KBIT and WAIS-III scores (Full Scale: r=.88, Verbal: r=.77, Performance: r=.87).
- No significant differences were found between the mean scores of the KBIT and the WAIS-III subscales.
Conclusions:
- The Kaufman Brief Intelligence Test demonstrates strong validity as a measure of adult intelligence.
- The KBIT can be reliably used as an intelligence test for adults, complementing existing measures.