In which situation is Pryhoda most likely to stop to help a motorist standing next to a car on the side of the road?
a. When she is in a bad mood.
b. When the stranded motorist is a man.
c. When the stranded motorist is on the turnpike, with many cars going by.
d. When the stranded motorist is the only car on a lonely back road in the country.
D
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Young children know their own gender at __________ years of age. They realize that their gender does not change by ages __________.
A. one to two; two to three B. one to two; three to four C. two to three; three to four D. two to three; four to five
Dr. Proctor tells Uma that her developing embryo is showing distortions in the development of its circulatory system. As a knowledgeable student of human development, Uma should realize that the problem is within cells of the ____ layer
a. placenta b. mesoderm c. ectoderm d. endoderm
What can we conclude if we reject the null hypothesis in an independent-samples t-test?
a. It is likely that sampling error accounted for the differences between the sample means. b. It is likely that the sample means came from the same population. c. The difference between our sample means is unlikely to be representing zero difference in the population means. d. The difference between our sample means is merely a poor representation of zero difference in the population means.
A Latin square design is used to determine the order of treatments that will be used in a within-subjects experiment comparing five treatments labeled A, B, C, D, and E. How many groups of participants will receive treatment E as the first treatment?
a. 0 b. 1 c. 5 d. cannot answer without more information