Related Experiment Video
Updated: Jun 2, 2026

Traditional Trail Making Test Modified into Brand-new Assessment Tools: Digital and Walking Trail Making Test
Published on: November 23, 2019
Reliability of three alternate forms of the trail making tests a and B
Stefanie Wagner1, Isabella Helmreich, Norbert Dahmen
1Department of Psychiatry and Psychotherapy, University Medical Centre, Mainz, Germany. stefwagn@uni-mainz.de
Abstract:
The majority of patients with Major Depressive Disorder (MDD) suffer from significant executive dysfunctions. To investigate the time course of executive functions during antidepressant treatment, repeated measures of executive functions are necessary. In order to avoid practice effects, the assessment of alternate forms is suggested. The aim of this study was to compare the processing times of four alternate versions of the Trail Making Test (TMT) A and B in patients with MDD. Fifty-five subjects with DSM-IV MDD were included in the study. We analyzed mean processing times and retest reliability of the four versions of TMT A and B. Mean processing times did not differ between the four tested versions of TMT A and B. Retest reliability of TMT A and B was between 0.76 and 0.89 and between 0.86 and 0.94, respectively. Because of their identical difficulty and high reliability, the herein described versions of the TMT A and B are suitable for sequential testing of executive functioning.
More Related Videos
Related Concept Videos
Reliability and Validity
Comparing Experimental Results: Student's t-Test
Testing a Claim about Population Proportion
There are two methods of testing a claim about a population proportion: (1) Using the sample proportion from the data where a binomial distribution is approximated to the normal distribution and (2) Using the binomial probabilities calculated from the data.
The first method uses normal distribution as an approximation to the binomial distribution. The requirements are as follows: sample size is large...

