The median correlation in IQ scores for identical twins reared together is ____, while for fraternal twins reared together it is ____.
A. .60; 1.00
B. 1.00; .50
C. .85; .60
D. .50; .50
Answer: C
You might also like to view...
Electroconvulsive shock therapy (EST) is not usually used when the patient ____
a. ?has schizophrenia b. ?is not responding to antidepressant drugs c. ?is at a high risk for suicide d. ?has severe depression
To study the effectiveness of a new anti-anxiety drug, researchers randomly assign equally anxious people to two groups, one getting Drug X and the other getting no drug. The researchers mistakenly conclude that Drug X works because people in the drug group show fewer signs of anxiety than the others. What is the mistake? a. They never introduced an independent variable
b. They did not create a placebo control group. c. They never did a pretest of anxiety symptoms. d. They did not operationally define what the experimental group was.
At the end of a movie about a tragic love story, many of the members of the audience are crying. This is probably due to the operation of:
a. mimic neurons b. empathic neurons c. mirror neurons d. osmotic neurons
An unconditioned stimulus:
a. automatically triggers a physiological reflex b. requires conscious effort c. is paired with a conditioned response d. is acquired through practice