Leiter International Performance Scale

Lei·ter In·ter·na·tion·al Per·form·ance Scale

a nonverbal (performance) test for measuring intelligence that contains norms for each age between 2 and 18; originally developed as a method of assessing the comparative intellectual abilities of white, Chinese, and Japanese children, but now occasionally used for assessing slow learners and those who are blind, deaf, or verbally handicapped.


Russell G., U.S. psychologist, 1901–.
Leiter International Performance Scale - a nonverbal test for measuring intelligence.
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The researchers report that at 60 months, or 5 years of age, the children whose mothers received DHA for the first 4 months of breastfeeding demonstrated an attention advantage, using the Sustained Attention Subtest of the Leiter International Performance Scale.