Whose theory of geologic change contributed to Darwin's Theory of Evolution?

Which two Big Five traits differ the most across cultures?

a. neuroticism and openness b. conscientiousness and extraversion c. agreeableness and openness d. neuroticism and extraversion

Which of the following are factors that influence the effectiveness of reinforcement?

a. different reinforcers work for different people b. larger reinforcers are generally more effective c. A and B d. none of the above