What is the term for a prompt fading-in procedure where prompts are added only as necessary?

The procedure referred to in the question is known as the least-to-most prompting technique. In this method, the intervention starts with the least intrusive or most supportive prompt and moves to more intrusive prompts only if the learner is unable to perform the desired behavior independently. This allows learners the opportunity to respond without being overwhelmed by prompts and encourages independence in skill acquisition.

Using this gradual approach promotes confidence, as learners experience success with the least intrusive prompts before moving to more direct assistance. The strategy supports the development of independence and helps ensure that prompts do not become a crutch that the learner relies on excessively.

In contrast, other techniques such as most-to-least prompting begin with the highest level of support, which may not be appropriate in all cases as it could hinder the learner's ability to develop independence. Time delay refers to the practice of introducing a pause before providing a prompt, and prompt dependency involves a situation where a learner becomes reliant on prompts to perform tasks. Understanding the least-to-most strategy is vital for fostering independent learning and skill mastery.