The F-A-S test for children is aimed at testing which aspect of executive function?

• A. Self-Directed Executive Function
• B. Inhibition
• C. Cognitive Flexibility
• D. Planning

Answer: (A)

This task primarily measures self-directed executive function, because success depends on the child’s ability to initiate and sustain goal-directed verbal activity with minimal external guidance. They must internally set the rule for each trial (generate as many valid words starting with the given letter as possible), organize a strategy to search their vocabulary, monitor their output to avoid repeats, and pace themselves within a time limit. This combination—in initiating the task, maintaining a search strategy, and self-monitoring output—captures how well someone directs their own cognitive processes.

Inhibition is involved only to the extent of avoiding repeated words, but the essence of the task is not about suppressing impulses. Cognitive flexibility would require shifting between different rules or mental sets, which this task does not demand. Planning would involve foreseeing steps ahead, which is less central here than the ability to start and sustain retrieval under a constraint.