A researcher computes a 4 ? 4 chi-square test for independence and estimates the following effect size: V = .36. This effect size is ______.
A. small
B. medium
C. large
Ans: C
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. A researcher uses a within-subjects design in which one group completes a difficult puzzle and the second group completes an easy puzzle. He finds that participants who completed the difficult puzzle first were able to learn about the puzzle and completed the easy puzzle quicker, compared to participants who did the easy puzzle first. What type of threat to internal validity was described in this example?
A. sampling effects B. carryover effects C. participant attrition D. participant fatigue
The National Commission on Children and Disasters recommends that all child care centers be prepared for disasters as part of their states' licensing procedures
a. True b. False Indicate whether the statement is true or false
A ‘critical value’ is ______.
a. a rule b. a probability c. a hypothesis d. a value of a statistic
In his work on the development of moral reasoning in children, Piaget found that
a. young children tend to be much more literal than adolescents in their interpretation of rules. b. eight-year-olds take into consideration the motive in wrongdoing. c. adolescents judge the degree of guilt by the magnitude of the crime, with no thought for the intentions of the wrongdoer. d. eight- and twelve-year-olds go through the same process and arrive at essentially the same conclusions in determining the degree of guilt for any given crime.