When testing the significance of a correlation coefficient, the usual null hypothesis is that the correlation in the population is __________. (Give a number.)
Fill in the blanks with correct word
zero
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According to Wage man (2009), what is a key condition for team effectiveness?
a. Teams should be as large as logistically possible to facilitate a wide range of ideas and input. b. Team members should be independent of each other and, where possible, work in isolation. c. The team should have an ambiguous overall goal so that they work hard to figure out a direction. d. A reward system should provide positive consequences for excellent team performance.
Sameera occasionally uses LSD. Her friend Lisa occasionally uses morphine. Their friend Amy is a social drinker. Which individual is the least likely to become dependent on the drug she is using?
a. ?Sameera b. ?Lisa c. ?Amy d. ?They are all equally likely to become dependent.
______ is a common test used for relationships between categorical variables measured on nominal and ordinal scales.
A. Pearson r B. Cohen's d C. Chi-square test D. Expected frequency
Which of the following would NOT be suggested by Ronald Fisher (1995) as a way to improve the accuracy of information elicited from witnesses?
A. Re-create the original context B. Make the interview witness-centered, rather than interviewer-centered C. Be sensitive to temptations to form premature conclusions D. Use a standardized checklist of questions for witnesses