Two children are participating in a memory research: heather, a preschooler, and illeana, a sixth-grader. when the children fail a recall task, the researcher asks each child what she might do to succeed at the task the next time. heather suggests that she would simply try again; illeana proposes that she might try to write the items down. the difference in the girls' responses most clearly illustrates an increase in during childhood.

metacognitive ability

Explanation:

metacognitive ability refers to someone's ability to become aware of our own thinking process. This ability is gradually formed as we grow older depending on how the environment teach us and  will influence the way we solve problem when we grow up.

People who have less developed metacognitive ability tend to not aware that sometimes changes in approach are necessary in  order to solve a certain problem. From the case above, we can infer that Illeana have more developed metacognitive ability compared to her friends.

could you show the options for the answers? : )