WCST (Wisconsin Card Sorting Test) on NI LABVIEW

It is required that I program a Wisconsin Card Sorting Test on NI LABVIEW. This specific task involves presenting a series of 4 cards containing stimuli that vary along several dimensions, including shape, color, and form (number of elements within the card). The users are asked to sort the cards by matching the stimulus cards with a key card that has the same characteristic (e.g., shape). The user is told to match the cards, but not how to match; however, they should be instructed whether a particular match is right or wrong. Once the subject demonstrates the ability to successfully sort 5 cards with the current principle, the program switches to a new sorting principle and the subject taking this test must find the new sorting principle (e.g., color). The key card on the bottom should be changed after each attempt (right or wrong), but the the 4 stimulus cards on the top should be changed after 5 successful attempts. I have copied a youtube link that briefly describes this task ([login to view URL]).