Learning is strengthened each time a response is followed by a satisfying state of affairs, according to the law of

Which of the following is evidence for a common evolutionary heritage?

(a) people the world over learn from experience and adapt to new situations (b) selective breeding experiments (c) people the world over react in exactly the same way to frustration (d) none of the above; there is no evidence relevant to the hypothesis of a common evolutionary history in humans

Julia is a 10 year old with severe anxiety and very high standards. She spends hours each day making sure her school work is completed and without errors and ensuring that she has clean clothes and a well-packed school bag for the next day

Her doctor recommended CBT for treatment, but it doesn't seem to be working. It is likely that Julia's _________ limited the efficacy of the therapy. a) Obsessive tendencies b) Perfectionism c) Eagerness to please the therapist d) Difficulty speaking to the therapist