Wilcoxon rank-sum test is to _____ as Wilcoxon matched-pairs signed-ranks T test is to _____
a. ordinal data; nominal data
b. interval data, ordinal data
c. between-subject design; within-subjects design
d. within-subjects design; between-subjects design
c
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Yvan and Joëlle have read about sudden infant death syndrome (SIDS) and are afraid of it. They would like to know which babies are most likely to die of SIDS. Explain to them the triple-risk hypothesis of SIDS.
What will be an ideal response?
Josephine bought her six-year-old nephew, Joseph, a new set of paints for his birthday. Hoping to encourage the little artist, Josephine promised Joseph one dollar for every painting. Joseph thinks that is quite a lot of money. According to research by Lepper and colleagues (1973) on overjustification effects, which of the following is most likely to occur?
a. Joseph will come to see painting pictures as a way to make money, not as something enjoyable in itself. b. Joseph will develop a love for painting and will want to be an artist when he grows up. c. Joseph will continue to paint even if his aunt eventually stops rewarding him with money. d. The paintings for which Joseph receives money will be judged as better quality than the paintings for which hedoes not receive any money.
The University of Illinois is starting a research project that compares the test performance of students who sleep eight hours a night and eat well-balanced meals with students who skip sleep and eat only junk food. This research project will most likely be directed by ____ psychologists.?
a. ?clinical b. ?health care c. ?occupational d. ?personality
The most powerful research method is the:
a. correlational method b. quasi-experimental method c. archival method d. experimental method