PreClass Questions(PCQ) - 8
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What is similar or in common between the formulas for the z test, one sample t test, dependent t test and the independent t tests?
A researcher is interested in running a study that looks at the effect of drinking alcohol on cognitive functioning. Briefly describe an experimental design that would be analyzed by a 1) dependent t test and 2) a 1-way ANOVA.
Using an independent t test with a large effect size, under which of the four conditions described would power tend to be the greatest?
2-tailed, N1=40, N2=40
1-tailed, N1=10, N2=10
1-tailed, N1=20, N2=80
1-tailed, N1=50, N2=50
4. Identify a concept that was difficult for you to understand from the reading or lecture in this chapter?
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Revised: September 23, 2001.