Wechsler Abbreviated Scale of Intelligence (WASI) - Subject Baseline
This measure appears in the following time-points: Baseline.
Related Construct
Description of Measure
The Wechsler Abbreviated Scale of Intelligence (WASI; Wechsler, 1999) produces an estimate of general intellectual ability based on two subtests, Vocabulary (42 total items that require the subject to orally define 4 images and 37 words presented both orally and visually) and Matrix Reasoning (35 incomplete grid patterns that require the participant to select the correct response from five possible choices). Administered in approximately 15 minutes, the WASI is a quick estimate of an individual's level of intellectual functioning, with higher scores indicating greater intellectual ability. The WASI is linked to both the Wechsler Intelligence Scale for Children (WISC-III) and the Wechsler Adult Intelligence Scale (WAIS-III), and has been normed for individuals' ages 6 to 89 years.
In the Pathways study, the WASI is administered on paper. Only the calculated scores (as indicated below) are entered into the database. These scores are generated by the interviewer administering the test following the formula specified in the WASI Administrator's Manual.
The following items are available for this measure:
- Full scale IQ [S0fsiq]
- WASI Percentile Rank [S0wasiti]
- Sum of Vocab and Reasoning TScores [S0wasisu]
- WASI Matrix Reasoning TScore [S0wasire]
- Vocab TScore - combining matrix reasoning TScores [S0vocabtscore]
Data Issues
- The WASI is missing for two cases: one subject refused to complete the measure and another subject only partially completed the WASI.
References
- Wechsler, D. (1999). Wechsler Abbreviated Scale of Intelligence. The Psychological Corporation: Harcourt Brace & Company. New York, NY.