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NAB® Digits Forward/Digits Backward Test

Robert A. Stern, PhD, and Travis White, PhD

Purpose:
Evaluates auditory attentional capacity and working memory for orally presented information
Format:
Paper and pencil
Age range:
18 years to 97 years
Time:
10-15 minutes
Qualification level:
C
C
All qualifications for Level B plus an advanced professional degree that provides appropriate training in the administration and interpretation of psychological tests, or license or certification from an agency that requires appropriate training and experience in the ethical and competent use of psychological tests. Close

This task presents the examinee with spans of digits to help you evaluate potential deficits in attention and working memory. The measure has both a 7-item digits forward task and a 7-item digits backward task, each with its own individual score. Because the two paradigms measure distinct function, the disparate scores allow for richer interpretation than that provided by similar assessment instruments.