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. 2013 Mar;28(2):189-98.
doi: 10.1093/arclin/acs115. Epub 2013 Jan 7.

Trail Making Test: regression-based norms for the Portuguese population

Sara Cavaco  1 , Alexandra Gonçalves, Cláudia Pinto, Eduarda Almeida, Filomena Gomes, Inês Moreira, Joana Fernandes, Armando Teixeira-Pinto
Affiliations

Trail Making Test: regression-based norms for the Portuguese population

Sara Cavaco et al. Arch Clin Neuropsychol. 2013 Mar.

Abstract

The main goal of this study was to produce normative data for the Portuguese population on the Trail Making Test (TMT). The study included 1,038 community-dwelling individuals aged between 18 and 93 years, who had educational backgrounds ranging from 3 to 22 years. The results showed that sex, age, and education were significantly associated with TMT performance. These demographic characteristics accounted for 57% of the performance variance at part A and 50% at part B. The normative data are presented as regression-based algorithms to adjust direct and derived test scores for sex, age, and education. The adjusted scores' percentile distributions and their correspondence with scaled scores are also provided.

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