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A Hebrew translation of the Wechsler Preschool Primary Scale of Intelligence was administered to 1072 Israeli-born children aging 4 to 6 1/2 years. Groups originating from Israel, East Europe, Middle East and North Africa, all subdivided into High vs. Low SES groups, were identified. The eight groups differed significantly in the level but usually not in the pattern of the subtests' scores. First generation Oriental children performed relatively lower, but the gap between second-generation Israeli children of Oriental and Western origin is notably diminished.
Lieblich et al. (Thu,) studied this question.