Which correlation coefficient represents no relationship between two variables?
a. 1.00
b. ?1.00
c. ?.50
d. 0.00
Ans: D
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Kiran, age 6, is very reserved even around those close to her. Her teachers describe her as anxious and lonely, even though other children try to play with her. These can be described as ______
a. Internalizing symptoms b. Delirium c. Externalizing symptoms d. Avolition
Binge drinking on college campuses is
a. greatly exaggerated by bogus reports. b. of moderate concern but quite controllable. c. of high-frequency and serious concern. d. denied by campus officials.
Within-subjects designs can have a bias due to the order in which participants receive the conditions.
Answer the following statement true (T) or false (F)
On average, those with the short form of the ____ transporter gene and a history of stressful experiences reported more than average symptoms of depression.
A. acetylcholine B. dopamine C. serotonin D. calcium