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Wechsler Abbreviated Scale of Intelligence - Second Edition

WASI-II
A reliable brief measure of intelligence for children and adults

Choose from our formats

  • Kits

    Starter & complete kits, print & digital

    1 option

    From AUD 767.80
  • Test forms & reports

    Booklets, record forms, answer sheets, report usages & subscriptions

    1 option

    From AUD 192.94
  • Support materials

    Manuals, stimulus books, replacement items & other materials

    4 options

    From AUD 356.18
  • All products

    All tests and materials offered for WASI-II

    6 options

    From AUD 192.94
- of 6 results
Prices include GST where applicable
  • WASI-II Complete Kit
    0158981561 Qualification Level C

    Includes

    Manual
    Stimulus Booklet
    Record Forms (Pack of 25)
    Set of 9 blocks in canvas bag

    AUD 767.80

  • Q-global WASI-II Manual (Digital)
    A103000232259 Qualification Level C

    Read only, cannot be printed

    AUD 385.99

  • WASI-II Stimulus Book (Print)
    0158981588 Qualification Level C

    AUD 377.74

  • WASI-II Manual (Print)
    015898157X Qualification Level C

    AUD 409.53

  • Q-global WASI-II Stimulus Book (Digital)
    A103000232258 Qualification Level C

    Read only, cannot be printed

    AUD 356.18

  • WASI-II Record Forms
    0158981596 Qualification Level C

    Pack of 25

    AUD 192.94

Overview

Publication date:
2011
Completion time:
15-30 minutes
Administration:
Individual; Manual scoring
Age range:
6 years to 90 years 11 months
Qualification level:
C

Product Details

The WASI–II, a revision of the WASI, provides a brief, reliable measure of cognitive ability for use in clinical, educational, and research settings. This revision maintains the format and structure of the WASI while offering new content and improvements to provide greater clinical utility and efficiency.

Features & Benefits

  • Updated normative sample
  • Four- and two-subtest versions allow you to control the administration time and depth of assessment
  • Parallel items and subtests and strengthened links to the WISC–IV and the WAIS–IV maximise clinical utility and efficiency in cognitive assessment practice
  • The flexibility to substitute WASI-II scores for the corresponding subtest scores on the WISC-IV or WAIS-IV if screening indicates further comprehensive assessment is needed
  • Simplified administration and scoring

Uses & Applications

Psychologists and researchers can use this quick and reliable measure when screening for intellectual disabilities or intellectual giftedness, or to:

  • Screen to determine if in-depth intellectual assessment is needed
  • Reassess after a comprehensive evaluation
  • Estimate a range of FSIQ scores on comprehensive batteries
  • Assess cognitive functioning of individuals referred for psychiatric evaluations
  • Measure IQ scores for vocational, rehabilitation, or research purposes

Content & Administration

The WASI–II builds on the strength of the WASI by providing updated versions of the WASI Vocabulary, Similarities, Block Design and Matrix Reasoning subtests, flexible administration options (i.e., four- or two-subtest versions), and strengthened connections with the WISC–IV and WAIS–IV.

Four-Subtest Form
(Vocabulary, Similarities, Block Design, Matrix Reasoning) provides:

  • FSIQ–4 score: Estimate of general cognitive ability
  • VCI score: Measure of crystallised abilities
  • PRI score: Measure of nonverbal fluid abilities and visual motor/coordination skills

Two-Subtest Form
(Vocabulary and Matrix Reasoning) provides:

  • FSIQ–2 score: Estimate of general cognitive ability

Strengthened Connections with the WISC–IV and WAIS–IV

The strengthened connections between the WASI–II and the comprehensive Wechsler intelligence scales result in a stronger empirical foundation for using the instruments together, and offer practical benefits that help you save time. The WASI–II subtests and items have been revised to more closely parallel their counterparts in the WISC–IV and WAIS–IV. Linking studies have been conducted with the WAIS–IV and the WISC–IV to establish equivalency and to improve comparability with the comprehensive Wechsler scales’ composite scores. Taken together, these improvements enhance the joint use of the WASI–II and the comprehensive scales.

If after screening, the WASI–II results indicate comprehensive intellectual assessment is needed, the WASI–II subtest scores can be substituted for the four corresponding subtest scores on the WISC–IV or WAIS–IV, which makes re-administration of those four subtests from the WISC–IV and WAIS–IV unnecessary.

Chart depicting similarities between WASI-II subtests and WISC-IV/WAIS-IV subtests

Click to enlarge

Psychometric Information

  • Updated norms: The standardisation of the WASI–II was conducted from January 2010 to May 2011 on a sample of approximately 2,300individuals aged 6–90.
  • Improved floors and ceilings
  • Linking studies with the WISC–IV and the WAIS–IV to:
    Provide prediction intervals from WASI–II FSIQ to the comprehensive FSIQ;
    Provide supporting data and guidelines for substituting WASI–II subtests for parallel subtests in the comprehensive scales.

Use in Australia and New Zealand

The Australian and New Zealand office of Pearson Clinical Assessment has been involved in the development and pilot phases of the WASI-II since 2008. As a result of this involvement the language and cultural differences of Australia and New Zealand have, where possible, been taken into consideration in the WASI-II. The WASI-II standardisation was undertaken in the U.S.

WASI-II and WAIS-IV Australian and New Zealand Language Adapted Edition

The WAIS-IV Australian and New Zealand Language Adapted Edition and the WASI-II both use U.S. norms.  WASI-II Substitution can therefore be undertaken with the WAIS-IV in accordance with the procedures set out in the WASI-II Administration and Scoring Manual and the Technical Report.

WASI-II and WISC-IV Australian Standardisation Edition

The WISC-IV Australian Standardisation Edition (WISC-IV Australian) uses Australian norms while the WASI-II uses U.S. norms. Supplementary analysis suggested that the limited use of U.S. WASI-II norms within the WISC-IV Australian is likely to have a negligible impact on test scores, please refer to the Technical Note below for full details. WASI-II Substitution can therefore be undertaken with the WISC-IV Australian in accordance with the procedures set out in the WASI-II Administration and Scoring Manual and the Technical Report provided below.

WASI-II Technical Note: Using WASI-II with WISC®-IV Australian

 

Resources

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