Researchers do not want to make a Type II error, because if their study has an effect, they want to be able to find it. Thus, they make their studies as powerful as they can. Of the following, the best way to increase the power of a study is to:
a. raise the significance level used for the study.
b. use inferential statistics.
c. test a large sample.
d. compute fewer statistical analyses.
c
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Why must teachers work with clinicians to insure the accuracy of assessments in regards to cultural diversity?
What will be an ideal response?
The longest lasting relationships individuals with disabilities have are with
a. siblings. b. parents. c. extended family members. d. educational.
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Indicate whether the statement is true or false
A psychologist was interested in whether there was a gender difference in the use of email. She hypothesized that because women are generally better communicators than men, they would spend longer using email than their male counterparts. To test this hypothesis, the researcher sat by the email computers in her research methods laboratory and when someone started using email, she noted whether they were male or female and then timed how long they spent using email (in minutes). How should she analyse the differences in males and females?
a. Paired t?test. b. Wilcoxon rank?sum test. c. Wilcoxon signed?rank test. d. Independent t?test.