Which chaining method is likely to be unsuitable for an individual who struggles to focus and shows problem behaviors when overloaded with tasks?

Forward chaining may not be suitable for an individual who struggles to focus and exhibits problem behaviors when overwhelmed with tasks because this method requires teaching the initial steps of a behavior chain first and moving through each subsequent step in a forward manner. As each step is taught independently, there can be a cumulative effect of increasing complexity and task demands. For individuals who are already prone to difficulties in focusing, introducing one task at a time might not adequately accommodate their challenges, especially if they face difficulty maintaining attention throughout the entire process of learning a chain of behaviors.

In contrast, methods like backward chaining or total task chaining might be more effective in such situations, as they can provide more immediate reinforcement for successfully completing simpler, discrete steps and allow for a more guided learning experience. In total task chaining, the individual is engaged in all parts of the task but may not need to complete every part at once, thus helping to better manage their attention and reduce the likelihood of becoming overwhelmed.