Learning how to write neatly is an example of a change in

Considering the various factors that moderate intellectual change, from an information processing perspective, what is the primary cause of decline in both fluid and crystallized intelligence?

a. self-efficacy b. working memory c. information interference d. perceptual speed

Ronnie, a mentally challenged 45-year-old male, lives in a group home

He receives play money for cleaning his bedroom and other chores that he can later "spend" on group activities around the city, new clothes, or candy. Ronnie's behavior is being directed by a(n) _____ economy. Fill in the blank with correct word