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Digit Span, Forward and Backward: Separate and Unequal Components of the WAIS Digit Span

Phillip T. Griffin, Anna Heffernan

Open publisher page 27 citations

Abstract

WAIS Digit Span scores of 50 subjects were evaluated to determine the relationship of Digits Forward and Digits Backward to intellectual functioning in an intellectually subnormal population. The subjects fell into one of five levels of intelligence, 50—59, 60—69, 70—79, 80—89, and 90—99, based upon Full Scale WAIS IQ. WAIS IQs and Digits Backward are significantly more highly correlated to all three WAIS IQs than are Digits Forward. Only the WAIS Digit Span (combined forward and backward) and Digits Backward discriminated across the five levels of intelligence.

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What this paper is about

WAIS Digit Span scores of 50 subjects were evaluated to determine the relationship of Digits Forward and Digits Backward to intellectual functioning in an intellectually subnormal population. The subjects fell into one of five levels of intelligence, 50—59, 60—69, 70—79, 80—89, and 90—99, based upon Full Scale WAIS IQ. WAIS IQs and Digits Backward are significantly more highly correlated to all three WAIS IQs than are Digits Forward. Only the WAIS Digit Span (combined forward and backward) and Digits Backward discriminated across the five levels of intelligence.

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OpenAlex reports 27 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

WAIS Digit Span scores of 50 subjects were evaluated to determine the relationship of Digits Forward and Digits Backward to intellectual functioning in an intellectually subnormal population. The subjects fell into one of five levels of intelligence, 50—59, 60—69, 70—79, 80—89, and 90—99, based upon Full Scale WAIS IQ. WAIS IQs and Digits Backward are significantly more highly correlated to all three WAIS IQs than are Digits Forward. Only the WAIS Digit Span (combined forward and backward) and Digits Backward discriminated across the five levels of intelligence.

Key concepts: Memory span, Wechsler Adult Intelligence Scale, Numerical digit, Psychology, Intelligence quotient, Span (engineering), Population, Audiology

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