An Android App for the Nonverbal Stroop Card Sorting Task

Christopher Koch & Josiah Hotovec

Abstract. The Nonverbal Stroop Card Sorting Task (NSCST, Koch & Roid, 2012) is a nonverbal Stroop assessment that requires examinees to sort cards according to target colors. Two color blocks appear on each card with a cross being centered in block to indicate that it is the target. In the congruent condition, both color blocks are the same color. In the incongruent condition, the two blocks are different colors. Sorting times are longer for the incongruent condition than for the congruent condition. Although the task is relatively straightforward and easy to administer, the use cards does place some constraints on where and how the test can be administered. Therefore, an Android app was developed to administer the NSCST using a tablet or other Android device. Data comparing the physical and app versions of the task was collected. Implications for testing are discussed.