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CTMT

Comprehensive Trail-Making Test

Cecil R. Reynolds, PhD

Purpose:
Evaluates brain injury and other forms of central nervous system compromise
Format:
Paper and pencil
Age range:
8 years to 74 years
Time:
5-12 minutes
Qualification level:
C
C
All qualifications for Level B plus an advanced professional degree that provides appropriate training in the administration and interpretation of psychological tests, or license or certification from an agency that requires appropriate training and experience in the ethical and competent use of psychological tests. Close

The CTMT is a standardized set of five visual search and sequencing tasks. Attention, concentration, resistance to distraction, and cognitive flexibility (or set-shifting) heavily influence performance on these tasks.

Features and benefits

  • The CTMT can be used to detect frontal lobe deficits; problems with psychomotor speed, visual search and sequencing, and attention; and impairments in set-shifting.
  • The respondent connects a series of stimuli in a specified order as quickly as possible. The score is the number of seconds used to complete each trail; a composite score is obtained by pooling the T scores from the individual trails.
  • Relative to traditional trail-making tasks, the CTMT emphasizes the frontal lobe components of the task by introducing inhibition on several trails and adding a new set-shifting task.

Technical information

  • The CTMT was standardized on a nationwide sample of 1,664 persons whose demographic characteristics matched to U.S. Census statistics. Norms were extended downward to age 8 years.
  • Reliability of scores for each individual trail is high, and the composite score has a reliability coefficient of .90 or higher at all ages.
  • The manual includes a description of administration and scoring procedures, a discussion of the test’s theoretical and research-based foundation, and extensive reliability and validity data.