After solving a series of mathematical problems using a complicated formula, Mark uses the same formula to solve another problem he could have solved using a much simpler formula. Mark's continued reliance on the complicated formula BEST illustrates which of the following?

Question

Quizplus · Accepted Answer

Mark's continued reliance on the complicated formula even when a simpler formula was available suggests that he was stuck in a mental set, or a habitual way of thinking about solving problems. He was unable to approach the new problem with a fresh perspective and continued to use the formula that had worked for him in the past.

After Solving a Series of Mathematical Problems Using a Complicated