Which instrument is a 16-item assessment with yes/no/NA options for whether target behavior occurs under described circumstances?

• A. Rating Scale
• B. FAST
• C. MAS
• D. ABC Data

Answer: (A)

This instrument uses a rating-scale approach: you have a fixed set of 16 items, each describing a specific circumstance or context, and you indicate for each item whether the target behavior occurs in that described situation using simple yes, no, or not applicable responses. This format is designed to quickly screen where the behavior shows up, helping to identify patterns across contexts without needing a full functional analysis yet.

Why this fits best: a rating-scale style tool is built around checking presence or absence of the behavior in predefined circumstances, which matches the description of 16 items with yes/no/NA options. The other tools are designed for different purposes or use different response formats: FAST is a broader screening for potential functions but not simply a fixed yes/no/NA checklist of situations; MAS focuses on motivations with scales rather than a straightforward yes/no item check; ABC Data is a live data collection method that records real antecedents, behaviors, and consequences over time rather than a fixed set of circumstance-based items to rate.