According to Piaget, the stage at which people develop the ability to think abstractly is called the __________

Research regarding psychological treatment for borderline personality disorder suggests that ________ appears to be helpful in improving mood and reducing suicidal and self-injurious behaviors

a. dialectical behavior therapy b. cognitive therapy c. operant conditioning d. nothing

The Discussion section usually begins with

a. limitations. b. implications. c. generalizations. d. the main hypothesis.