TRAIL MAKING TEST - NORMATIVE VALUES FROM 287 NORMAL ADULT CONTROLS

The Trail Making Test (TMT), which explores visual-conceptual and visu al-motor tracking, is a frequently used neuropsychological test becaus e of its ease of administration and sensitivity to brain damage. In th is paper, norms are provided for the time scores derived from parts A and B, and for the (B-A) difference. The data were collected from 287 adult Italian subjects stratified by gender, schooling and age (from 2 0 to 79 years). The test scores were affected by age, education and ge neral intelligence (as expressed by Raven's Coloured Progressive Matri ces). Only for part A did females have longer time scores than males. Test-retest reliability was high for each score.