The evidence from studies of twins and biological and adoptive siblings indicates that shared environmental influences explain approximately ________ percent of individual variations in personality traits.

A. 15
B. 50
C. 25
D. 0 to 1


Answer: D

Psychology

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Children form social categories by ________ of age

a. three months c. twelve months b. six months d. twenty-four months

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A. She will assume that everyone wants pizza because she wants pizza for dinner. B. She will patiently wait to hear the preferences of her three siblings. C. She will beg her brother and sister to say that they also want to order pizza. D. She will try to convince her parents that her preference for pizza trumps what her siblings want.

Psychology