An independent-measures research study uses a total of 40 participants to compare two treatment conditions. What is the df value for the t statistic for this study?

a. 18 c. 38
b. 19 d. 39


C

Psychology

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Which does the text cite as the most frequent form of child abuse?

A. sexual abuse B. psychological maltreatment C. physical abuse D. neglect

Psychology

Tim has been worried about his grades for more than three months. After hearing about the diagnosis of generalized anxiety disorder, he becomes convinced that he has the disorder himself. After seeing a mental health professional, what is he told?

a. He is actually suffering from the early stages of panic disorder. b. His concern over grades is more indicative of obsessive-compulsive disorder. c. He does not meet the criteria for generalized anxiety disorder in terms of length of time and number of worries. d. The focus of his worry suggests that he is suffering from a phobic reaction rather than a generalized anxiety disorder.

Psychology

Dr. Nebinger is discussing population trends and their changes with her students. "As you can see looking at these graphics," she says, "in _____ the population of the United States looked most like a pyramid."

a. 1950 b. 1980 c. 1990 d. 2010

Psychology

Which of the following would best reflect a life story goal of communion?

a. Being a powerful CEO b. Winning a Nobel prize c. A lifelong love d. Being your own person

Psychology