Same-gender playgroups occur in about 30 to 40% of 2- to 3-year-olds. What percentage of same-gender playgroups are present during middle childhood?
94%
72%
30 to 40%
12%
94%
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Of the following countries, where is love most valued as a reason to marry?
A. China B. United States C. Iran D. Nigeria
Self-handicapping may be used to . . .
a. Enhance one’s self-esteem b. Protect one’s self-esteem c. Both of the above d. Neither of the above
Scientists have created a strain of "smart mice" by manipulating the genes that guide:
A) the brain's reward pathway. B) the development of Wernicke's area. C) hippocampal development. D) the development of the orbitofrontal cortex.
Which of the following must be included for a scientific observation to be objective?
a. the observer's personal beliefs b. the observer's emotions c. the observers prior expectations d. the observer's skill at knowing what is clearly observable