The estrogen in the combination, triphasic, and extended-release pills prevents conception primarily by
A) ?impairing tubal motility.
B) ?inhibiting ovulation.
C) ?altering the acidity of the uterus.
D) ?reducing the circumference of the cervix.
B
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Research on education in nonindustrialized countries shows that
a. girls are more likely to attend school, whereas boys are more likely to perform work. b. boys and girls are equally likely to attend elementary school, but girls are more likely to attend secondary school. c. females are significantly less likely than males to be able to read and write. d. girls and boys, in general, are treated similarly.
Kimble (1984) administered a scale that measures where psychologists fall on the ____ continuum.
a. eclectic-focused b. scientific-humanistic c. premodernism-postmodernism d. empirical-rational
Studies of IQ correlations between twins and other relatives show that the average correlation for
A) identical and fraternal twins decreases into adulthood. B) fraternal twins living together is stronger than the average correlation for identical twins living apart. C) twin and nontwin siblings living together is stronger than the average correlation for those living apart. D) fraternal twins living apart is stronger than the average correlation for nontwin siblings living together.
Adolescent girls are more likely than adolescent boys to
A) have fewer close friends. B) be less cliquish. C) make up quickly after disagreements. D) be concerned with their friends' loyalty.