Ten visitors to an art gallery are asked to rate a Van Gogh painting alongside a sculpture each by Henry Moore and Michelangelo. What test would be used to see if there is a significant difference in ratings amongst the three pieces?

A. Mann–Whitney test
B. Signed-rank test
C. Friedman test
D. Kruskal–Wallis test


Answer: C

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The major threat to the internal validity of research on articulation problems in young children is

a. regression. b. instrumentation. c. mortality. d. maturation. e. selection.

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The Family and Medical Leave Act (FMLA) occurs at which level of a family's ecology?

A. family level B. governmental level C. individual level D. community level

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Which of the following is a desirable characteristic of assessment instruments for students with severe handicaps?

A. a large number of items B. a narrow sample of behaviors C. highly structured administration procedures D. pass-fail scoring

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Evaluating play involves ____________________, ____________________, and ____________________

Fill in the blank(s) with correct word

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