The D-KEFS (Delis, Kaplan, & Kramer, 2001) tasks provide a sensitive and valid approach for evaluating multiple components of executive functioning. The following scaled scores were used as the dependent variables: Design Fluency Switching (DF), Color-Word Interference Inhibition (CWI), Color-Word Interference Inhibition/Switching (CWS), Twenty Questions Test Total Initial Abstraction (TQ), Tower Test Total Achievement (TT), Verbal Fluency Switching (VF) and Trail Making Test Number-Letter Switching (TMT).
