Stroop Color and Word Test This test is used to assess cognitive flexibility in the sense of ability to inhibit a more automatic verbal response (reading color words) in order to generate a conflicting response of naming the dissonant ink colors.

Color-Word Interference Test (D-KEFS) This test assesses cognitive flexibility by both requiring the child to inhibit reading words denoting colors while naming the colors themselves, but subsequently asks the child to switch back and forth between naming the dissonant ink color and reading the conflicting word.

Sorting Test (D-KEFS) This test assesses among other things the child's ability to initiate problem-solving behavior. The child is asked to sort cards into two groups, with 3 cards per group, according to s many different concepts or rules as possible. Each of the two card sets has a maximum of eight target sorts: three based on verbal-semantic information from the printed words and five based on visual-spatial features or patterns on the cards. Accuracy and descriptions of the sorting concepts are recorded.

Twenty Questions Test (D-KEFS) An adaptation of a popular game played by children and adults, this test assesses the ability to identify the various categories and subcategories represented. The child is presented with a stimulus page depicting pictures of 30 common objects, and tries to ask the fewest number
of yes/no questions in order to identify the unknown target object. Several process measures are provided to assist the clinician in elucidating the neurocognitive mechanisms underlying poor performance on this test.

Trail Making Test (D-KEFS) An adaptation of the traditional Trail Making Test used to measure temporal sequencing and mental flexibility, this test consists of 5 conditions instead of 2 including a number-letter switching condition. The test allows the examiner to tease out more fundamental processes including visual
scanning, number and letter sequencing, and motor speed. more