Czech Version of the Trail Making Test: Normative Data and Clinical Utility

We present normative values for the Czech version of the Trail Making Test, providing a reference for measuring individual performance in native Czech speakers

O. Bezdicek; L. Motak; B. N. Axelrod; M. Preiss; T. Nikolai; M. Vyhnalek; A. Poreh; E. Ruzicka

2012

Scholarcy highlights

  • The Trail Making Test is ranked 3 of the 40 most frequently used neuropsychological instruments in clinical practice in North America
  • The principal goals of this study were to provide normative data for the TMT in the Czech population stratified by age and education, determine if the TMT ratio score can better differentiate between different clinical groups than time to task completion, test whether the TMT ratio score is relatively resistant to demographic influences in various clinical neuropsychiatric groups, and create a basis for cross-cultural comparison with existing normative studies from Western cultures
  • As age was significantly correlated with all TMT indices, accounting for 16%, 21%, 11%, and 5% of variance, respectively, participants were assigned to seven different age-groups that each spanned 10 years
  • A 2 × 7 Analyses of variance with education and age as the between-subject factor was performed separately on all TMT scores and revealed that participants with ≥13 years of education had shorter completion times and lower composite scores than participants with ≤12 years of education. It appeared that both TMT-A and TMT-B completion times were longer in participants of ≥55 years, whereas there was no significant difference on either the TMT-B 2 A or TMT-B/A scores
  • Our results demonstrated that the influence of demographic variables on TMT-A and TMT-B performance using a Czech version of the TMT is comparable with prior research
  • Pearson’s correlation coefficients were used to describe the strength and direction of the linear relationships between the TMT and demographic variables. As these variables were significantly correlated with TMT performance, they were used as covariates in the initial data analyses
  • Analysis of the TMT-derived scores showed that the TMT-B/A ratio score was insensitive to age, a finding supported by other studies
  • The present study provided normative data for the Czech version of standard and derived Trail Making Test indices in young and elderly subjects

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