A researcher who is examining the effects of temperature and humidity on the eating behavior of rats uses a factorial experiment comparing three different temperatures (70?, 80?, and 90?) and two humidity conditions (low and high). How many factors are in the experiment?
a. one
b. two
c. three
d. six
b
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Why is a sequential design desirable, when possible? a. It separates the contributions of heredity and environment
b. It eliminates the ethical concerns that plague other research methods. c. Its results apply to cultures throughout the world. d. It combines the strengths of cross-sectional and longitudinal methods.
The defining element of an externalizing problem involves
a. hallucinations. b. delusions. c. acting out. d. phobias.
Mother Theresa is often praised for the good works she accomplished during her life. She became a nun, took a vow of poverty, and helped others in the slum areas of cities. According to Maslow, she would be in the ____ stage of his hierarchy.?
a. ?self-actualization b. ?physiological c. ?safety and security d. ?belongingness and love
What type of solid food should be introduced into a baby's diet first?
a. cereal c. meats b. strained fruit d. peanut butter