Age range: 18 to 89 years
Admin: Individual
Qualification level: C
Developed to be free from the influence of language and cultural bias, the CTT assesses sustained attention in adults.
Numbered circles are printed with vivid pink or yellow backgrounds that are perceptible to color-blind individuals. For Part 1, the respondent uses a pencil to rapidly connect circles numbered 1-25 in sequence. For Part 2, the respondent rapidly connects numbered circles in sequence, but alternates between pink and yellow. The length of time to complete each trial is recorded, along with qualitative features of performance indicative of brain dysfunction, such as near-misses, prompts, number sequence errors, and color sequence errors.
Note: Stopwatch is required for administration.
CTT Introductory Kit:
- CTT Professional Manual
- 25 Record Forms
- 25 Administrations of the CTT Form A, Parts 1 and 2
NOTE: Price is exclusive of 12% VAT and Delivery Charges