The __________________ technique is utilized when a group of experts is asked to comment on a questionnaire designed for a study, provide input, and assist the researcher in refining the measure.
A. Dillman
B. focus group
C. nominal group
D. Delphi
Answer: D
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Assume you have developed a new instrument to measure introversion/extroversion in teachers. Would you assess score validity or reliability first? Why?
What will be an ideal response?
Which of the following statements about the role of textbooks in curriculum is most accurate?
a. The curriculum plan, not the textbook, tends to most determine the knowledge base for individual courses. b. Textbooks tend to help address the curriculum to the special needs of particular groups of students. c. Textbooks influence the nature and sequence of a curriculum. d. Textbooks tend not to affect students' learning experiences.
If you have a choice between investigating the same question with ex post facto research or with experimental research choose
a. ex post facto research. b. experimental research.
The term “critical value” refers most specifically to ______.
a. how researchers define a ‘low’ probability b. the value of a statistic needed to reject the null hypothesis c. the minimum sample size needed to test a research hypothesis d. the value of a population parameter such as µ