In a 2 x 2 factorial design, there are two main effects and two interaction effects
a. True
b. False
Indicate whether the statement is true or false
False
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Which factor helps explain the historic low in the teenage birth rate?
A. The price of condoms has steadily increased. B. A greater number of adolescents are taking the "virginity pledge" in schools across the country. C. The rate of sexual intercourse among teenagers has increased, and the use of birth control has decreased. D. Substitutes for sexual intercourse, such as oral sex, are increasingly accepted as an alternative to sexual intercourse.
Sickle-cell anemia is more common among Caucasian Americans than minority groups in the US
Indicate whether the statement is true or false
Research on second language acquisition indicates that second language learners
a) progress through developmental stages that are nearly universal. b) progress through developmental stages, but the order of these stages varies from culture to culture. c) progress through developmental stages, but people can skip stages with intervention and practice d) do not progress through stages.
The brain's inexperience in interpreting messages from the weightless ________ causes the space sickness commonly experienced by two-thirds of all space travelers.
A. otoliths B. Eustachian tube C. hair cells D. cochlea