If the correlation between IQ scores of identical twins raised together is found to be +.85 and the correlation between IQ scores of identical twins reared apart is found to be +.70, the .15 difference found between the two groups is most likely attributa
a. the impact of genetics.
b. the impact of the environment.
c. sampling errors.
d. problems with the instruments used to measure IQ.
Answer: b. the impact of the environment.
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The state of tension created by biological needs is called a(n) ________
a) emotion b) impulse c) drive d) instinct
In a(n) ____________________, a researcher focuses on a single individual
Fill in the blank(s) with correct word
You are standing in the middle of a field of long, tall grass and flowers. When you look at your feet and at the area immediately around you, you can see great detail and pick out all the individual pieces of foliage. However, when you look up in the distance, the grass and flowers lose detail and begin to merge together. This phenomenon involves the pictorial depth cue of
a. texture gradients. b. linear perspective. c. relative size. d. relative motion.
Which term fits in least well with the others?
a. Social category b. Primary group c. Social identity d. Stereotypes