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Because of the significance of the Boston Naming Test (BNT) in the differential diagnosis of the dementias, especially Alzheimer's disease, adequate norms from community-dwelling elderly individuals are essential. The present study describes the development of two new empirically derived equivalent short forms (30 items each) of the test. Normative data for the total BNT and the two equivalent 30-item halves based on item difficulty are presented using the performance of 314 community-dwelling individuals aged 65 and over. Age and education norms are presented using an overlapping midpoint interval strategy.
Saxton et al. (Wed,) studied this question.