Which career counseling intervention allows a client to gain insight into a particular work environment by observing a competent worker?

When the author of the textbook, Laurence Steinberg, says that "Some researchers have argued that the question of whether self-esteem is stable during adolescence is a poor one," what does he mean?

A. Researchers have argued that asking whether self-esteem is stable is a poor question because it is impossible to measure self-esteem, let alone measure whether it changes during adolescence. B. Researchers have argued that asking whether self-esteem is stable is a poor question because self-esteem does not change across development; self-esteem is one of the most stable traits. C. Researchers have argued that asking whether self-esteem is stable is a poor question because group averages often hide substantial differences between people. D. Researchers have argued that asking whether self-esteem is stable is poor because the answer is incredibly obvious and, as a result, it does not deserve any more scientific research.

You've always disliked a particular coworker who strikes you as dishonest, but he is nice to you and does you favors, so you become friendly with him despite your miivings. One day you learn that he stole personal items from your desk

You now decide to discontinue the friendship. Your negative attitude toward this coworker is strengthened through __________ a) operant conditioning. b) instrumental learning. c) classical conditioning. d) reduction of cognitive dissonance.