LEITER INTERNATIONAL PERFORMANCE SCALE LIPS

Polish standardization 1993 (P-93) and manual: :
Aleksandra Jaworowska, Anna Matczak, Teresa Szustrowa (2009)
Author:
Russel G. Leiter
Age:
Children (3-15 years old).
Procedure:
Individual administration; no time limit (except in 4 trials); the number of trials differs from child to child depending on the success/failure ratio; so the testing time varies considerably – approximately 20 min in the youngest children and 60 min in the oldest children.
Test users:
Psychologists (psychology diploma required).

A nonverbal intelligence test.

Leiter

DESCRIPTION: The Leiter Scale P-93 consists of 52 trials organised in order of difficulty as established in standardization studies. Trials are grouped in fours in 13 series, from A to M. The child is to reconstruct, by means of blocks, the pattern defined by the information in the pattern drawn on a strip of cardboard.

RELIABILITY: Satisfactory internal consistency.

VALIDITY: Established construct validity (between-group differences as predicted, significant correlations with school grades) and concurrent validity (significant correlations with WISC-R, Standard Progressive Matrices and Coloured Progressive Matrices).

NORMS: For children aged 3-15 and for deaf children aged 3-14 (Polish national samples).

APPLICATIONS: In psychological practice to assess intellectual capacity. The scale is particularly useful with children with whom verbal contact is impaired or impossible because it does not require the use or comprehension of speech.

MATERIALS:
•    Kit (test materials, manual with polish normalization, instructions, 25 recording sheets, 25 qualitative analysis sheets)
•    Manual with polish normalization
•    Test materials (three boxes of cubes and patterns in a bag)
•    Recording sheets (25 copies)
•    Test instructions
•    Qualitative analysis sheets (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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