Explain the difference between most-to-least prompting and least-to-most prompting.

• A. They are identical
• B. Most-to-least starts with the most assistive prompt and fades; least-to-most starts with minimal prompts and increases as needed
• C. They refer to reinforcement schedules
• D. They are about data collection timing

Answer: (B)

Prompting strategies are ways we adjust help to shape how a learner responds while moving toward independence. In most-to-least prompting, you begin with the most assistive prompt—think full physical guidance or the strongest cue—and then gradually fade to lighter prompts across trials as the learner demonstrates the skill. The plan is typically set in advance, and you monitor performance to decide when to reduce prompts.

In least-to-most prompting, you start with the least intrusive prompt possible (often no prompt) and only add prompts on a trial-by-trial basis if the learner doesn’t respond correctly. This approach is more adaptive and aims to minimize dependence on prompts by providing exactly what’s needed to elicit the correct response, then removing it again as skill accuracy improves.

The difference lies in where you start and how you fade: most-to-least goes from heavy support to lighter support in a pre-planned sequence, while least-to-most starts light and escalates prompts only as necessary. Both are about guiding learning with prompts, but their fading directions and onset prompts are opposite.

The other options don’t fit because prompting isn’t about reinforcement schedules or data collection timing, and the two methods are not identical in how they initiate and reduce prompts.