Encyclopedia of Clinical Neuropsychology

2018 Edition
| Editors: Jeffrey S. Kreutzer, John DeLuca, Bruce Caplan

Trail Making Test

  • John E. MeyersEmail author
Reference work entry
DOI: https://doi.org/10.1007/978-3-319-57111-9_217


Divided attention test; Partington’s pathways


The Trail Making Test (TMT) is a measure of attention, processing speed, and mental flexibility. The test has two forms: one for children aged 9–14 and another for adults aged 15 and above. On part A, examinees are required to connect 25 encircled numbers that have been randomly placed on a page in proper order. They must complete the task within 5 min. On part B, examinees are required to connect the encircled numbers and letters in alternating order, again within 5 min. Examinees are instructed to connect the circles as fast as they can without making mistakes or lifting the pencil from the paper.

Historical Background

The TMT originated in 1938 and was named “Partington’s pathways” or divided attention test (Partington and Leiter 1949). It was developed by the US Army psychologists and was part of the Army Individual Test Battery (1944). Reitan adapted the test and added it to the Halstead Battery (Reitan 1955). The...

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References and Readings

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Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of NeuropsychologyComprehensive Medpsych SystemsSarasotaUSA