Table 1.

Executive function abilities and processing speed

Assessed abilities	Applied assessment tools
Inhibition and interference	Stop-Signal Task (stop-signal reaction time) Color Word Interference Task (D-KEFS)
Working memory	Digit Span forward/backward (WISC-IV) Corsi Block Tapping Test TAP Working Memory (TAP 2.3)
Cognitive flexibility	Trail Making Task (D-KEFS) TAP Flexibility (TAP 2.3)
Planning	Tower Task (D-KEFS)
Fluency	Verbal Fluency (RWT) Design Fluency (D-KEFS)
Executive functions in everyday life	Parent rating (BRIEF questionnaire)
Processing speed	Coding, Symbol Search (both WISC-IV) Stop-Signal Task (mean reaction time of correct go trials)

Study-specific test battery to assess executive functions and processing speed.

BRIEF, Behaviour Rating Inventory of Executive Functions; D-KEFS, Delis-Kaplan Executive Function System; RWT, Regensburger Verbal Fluency Test (Regensburger Wortflüssigkeitstest); TAP, Test Battery for Attention Testing (Testbatterie zur Aufmerksamkeitsprüfung); WISC-IV, Wechsler Intelligence Scale for Children Fourth Edition.