Research reveals that students will be more intrinsically motivated and be more engaged in learning when the classroom environment has which of the following characteristics?

A) many external incentives and is not too controlling
B) many external incentives and learning is teacher-directed
C) few external incentives and learning is self-directed
D) few external incentives and learning is teacher-directed

At age 22,Skinner experienced:

A) feelings of success and self-esteem.
B) an identity crisis.
C) jealousy of an older brother.
D) a late-blooming Oedipus complex.