The CCTT assesses sustained attention, sequencing, and other executive functions in children between the ages of 6 to 16, while reducing reliance on language and diminishing the effects of cultural bias and parental verbal report. It 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. The salient features, color and number, were chosen because these characteristics are easier than letters for children to process and recognize. The test takes approximately 5-7 minutes to complete, and can be administered using nonverbal instructions. The C-CTT Introductory kit includes: 1 CCTT Professional Manual; 50 Record Forms; and 50 Administrations of CCTT Form K, Parts 1 and 2.