Loading presentation...

Present Remotely

Send the link below via email or IM


Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.


Wechsler Abbreviated Scale of Intelligence (WASI)

No description

Amanda Zago

on 12 May 2014

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Wechsler Abbreviated Scale of Intelligence (WASI)

Wechsler Abbreviated Scale of Intelligence (WASI)
- Measures knowledge of words and verbal concept formation
- Measures verbal concept formation and reasoning

These two combine to measure verbal-crystallized abilities (VIQ)

Block design
- Measures the ability to analyze and synthesize abstract visual stimuli
Matrix reasoning
- Measures fluid intelligence, classification and spatial ability, broad visual intelligence, knowledge of part-whole relationships, simultaneous processing, and perceptual organization

These two combine to measure nonverbal-fluid abilities (PIQ)
Individually administered intelligence test
Abridged version of Wechsler Adult Intelligence Scale (WAIS)
Introduced in 1999
Intended for individuals between the ages of 6 and 89
Consists of four subtests:
1. Vocabulary
2. Block Design
3. Similarities
4. Matrix Reasoning
Amanda Zago
Subtests ranged from .83 to .91.
Significant results.
Internal Consistency
Demonstrated by the high and low alphas.
Convergent Validity- the degree to which two measures of constructs that should be related are in fact related.
Demonstrated by correlation of WASI coefficients to Wide Range Intelligence Test (WRIT) coefficients.
Convergent validity is also indicated by higher correlations between similar subtests.
Ease of use
Broad age range
Different forms
Some sacrifice of clinical accuracy
Not comprehensive
Benefits of Abbreviated Measures
Basic WAIS-IV kit=$2000. Basic WASI-II kit=$230.
"The demands of research protocols and managed care environments have imposed time constraints on psychological testing resulting in efforts to develop abbreviated forms of well-established psychometric measures." (Meyer, 2000)
Incremental validity
Valid assessment that saves time and money
Extremely useful for practitioners
Stano, J. F. (2004). Test Review: Wechsler Abbreviated Scale of Intelligence. Rehabilitation Counseling Bulletin, 48(1), 56-57.
Canivez, G. L., Konold, T. R., Collins, J. M., & Wilson, G. (2009). Construct validity of the Wechsler Abbreviated Scale of
Intelligence and Wide Range Intelligence Test: Convergent and structural validity. School Psychology Quarterly, 24(4), 252-265. doi:10.1037/a0018030
Abu-Hilal, M. M., Al-Baili, M. A., Sartawi, A., Abdel-Fattah, F., & Al-Qaryouti, I. A. (2011). Psychometric properties of the
Wechsler Abbreviated Scale of Intelligence (WASI) with an Arab sample of school students. Individual Differences Research, 9(4), 219-230.
Irby, S. M., & Floyd, R. G. (2013). Review of 'Wechsler Abbreviated Scale of Intelligence, Second Edition'. Canadian Journal Of
School Psychology, 28(3), 295-299. doi:10.1177/0829573513493982
McCrimmon, A. W., & Smith, A. D. (2013). Review of 'Wechsler Abbreviated Scale of Intelligence, Second Edition (WASI-II)'.
Journal Of Psychoeducational Assessment, 31(3), 337-341.
Psychological Corp. (1999). Wechsler Abbreviated Scale of Intelligence Manual. San Antonio, TX: Author.
Meyer, M. (2000). Use of Wechsler Abbreviated Scale of Intelligence in a vocational rehabilitation sample. http://
www.ohiolink.edu/etd/view.cgi?ucin976036571, 23/12/2002.
Full transcript