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Children's Color Trails Test

Antolin M. Llorente, PhD, Jane Williams, PhD, Paul Satz, PhD, and Louis F. D'Elia, PhD

Measures sustained attention, sequencing, and other executive skills
Paper and pencil
Age range:
8 years to 16 years
10-14 minutes
Qualification level:
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 CCTT assesses sustained attention, sequencing, and other executive functions while reducing reliance on language and diminishing the effects of cultural bias and parental verbal report.

Features and benefits

  • Retains many similarities to the original children’s version of the Trail Making Test but substitutes color for letters, increasing the suitability of the test in cross-cultural contexts and with special needs populations.
  • Can be administered using nonverbal instructions.
  • Normative data were collected from 678 healthy children and more than 500 children in various clinical groups.
  • Alternate-form reliability between Form K and Form X for Part 1 and Part 2 was .85 and .90, respectively. Time raw scores for Part 1 and Part 2 exhibited good temporal clinical stability, with coefficients ranging from .90 to .99 across various time intervals.
  • Demonstrates a good level of convergent validity with the Children’s Trail Making Test and other instruments designed to assess attention.

Note. Stopwatch is required for administration. Form K is the standard test form for which normative data were collected and should be used for clinical evaluation. Forms X, Y, and Z should be used in research.


A comprehensive list of research articles related to the CTT and CCTT is available via Mendeley, a free reference management tool. After accessing the link, you will be prompted to create an account. A white paper describing how to use this research repository can be found here. Use of this resource is encouraged to facilitate research using the CTT and CCTT products. Both the list and the white paper are available in the Resources tab above.