Which of the following statistical tests would one use to compare the means from two groups?
a. Pearson r
b. t test
c. chi-square
d. z score test
b
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What is the probability of rolling a 3 in a single roll of a die?
a. 0.50 b. 1.0 c. 0.25 d. 0.17
At the Museum of Science and Industry, Joan finds an exhibit with three colored spotlights. By adjusting the intensity of the red, green, and blue lights and overlapping them, Joan is able to create any color she likes. Which theory of color vision does this support?
A. Opponent-process B. Synthesis C. Dichromatic D. Trichromatic
Erikson thinks that the sixth stage of development spans the period from:
a. fifteen to twenty b. twenty to twenty-four c. thirty-five to forty-five d. forty-five to sixty-five
According to Diamond (1997), which statement is true of domesticated plants?
a. Twelve crops account for 80% of the world’s harvest. b. Successful domestication requires a knowledge of genetics. c. Unlike domesticated animals, domesticated plants provide only food. d. Domestication only began about 1,000 years ago.