Addie has weekly spelling tests. On Monday she gets the list of ten words and realizes she knows how to spell four of the words. Rather than studying these four words, she spends Tuesday and Wednesday studying the six new words. On Wednesday evening she quizzes herself on the six words and learns she now knows how to spell three more. Thursday she studies the three words she still did not know how to spell. Friday morning before the spelling test she quizzes herself on all ten words and correctly spells all ten words. Addie's ability to evaluate the task of learning words and monitor and adjust her performance throughout the learning process is a product of .