Building on the international reputation of the TEA, the TEA-Ch comprises nine subtests that measure children's abilities to selectively attend, sustain their attention, divide their attention between two tasks, switch attention from one thing to another, and withhold (inhibit) verbal and motor responses.

Using attractive graphics and sound, the subtests are designed to be appealing to children as young as six years without being inappropriate for use with adolescents to the age of 16. The subtests are sensitive to the developmental progression of attentional skills. Two parallel forms allow for confidence in re-testing the same child.

The TEA-Ch provides standardized scores that allow for a comparison of attentional performance in each of the attentional domains. It is suitable for group studies as well as the assessment of single cases. The subtests have been designed to be as conceptually simple as possible so that children with a wide range of abilities may be tested.