David Wechsler
Polish standardization and manual:
Jerzy Brzeziński, Marek Gaul, Elżbieta Hornowska, Aleksandra Jaworowska, Andrzej Machowski, Marzenna Zakrzewska
Adolescents over 16 years of age, adults
Individual administration; approx. 60-90 min.
Test users:
Psychologists (MA in psychology required)
C – for psychologists only

The scale measures general intelligence.

DESCRIPTION: The WAIS-R (PL) consists of six verbal tests (Information, Digit Span, Vocabulary, Arithmetic, Block Design, Object Assembly, and Digit Symbol) and five performance tests (Picture Completion, Picture Arrangement, Block Design, Object Assembly and Digit Symbol). Raw scores are transformed into transformed scores (for every age group there is separate table) and then into IQ in Verbal Scale, Performance Scale, Full Scale and three factor scores – Verbal Comprehension, Perceptual Organization and Memory and Freedom from Distractibility.

RELIABILITY: High internal consistency of scales (Verbal, Performance and Full) and eight tests (lower for Object Assembly) and high stability of two tests (Digit Span, Digit Symbols).

VALIDITY: Significant correlations with tests measuring “g” (SPM Plus, RFTT) and abstract reasoning (WCST). Scores improve with level of education. The results of validation study indicate that Verbal Scale measures crystallized intelligence and Performance Scale – fluid intelligence. Polish manual contains correlations between WAIS(R) PL scores and two personality variables – anxiety and coping with stressful situations.

NORMS: For 16-79-year-olds (Polish national sample).

APPLICATIONS: Primarily in psychological practice to assess intellect.

•    Kit (box of test materials, manual with Polish normalization, 25 recording sheets)
•    Manual with Polish normalization
•    Box of materials
•    Recording sheet (25 copies)

Please note: All of our tests are published in Polish. There are not available other language versions of our tools.

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