In which one of the following situations does a researcher definitely have a problem with the reliability of a data collection technique?
a. Ms. Arthur assesses children's overall physical fitness on Monday; she then assesses it the following Monday. Children who perform well one week are not the same ones who perform well the following week.
b. Mr. Benavidez uses a test of mechanical aptitude to determine which high school students are ready to take a calculus course. Later, he finds out that the students who got some of the lowest scores on the test are actually some of the best students in the calculus course.
c. Mr. Candelaria distributes a questionnaire to a group of fifth graders without first obtaining their parents' permission.
d. To determine the frequency with which young adolescents drink alcoholic beverages, Ms. D'Amato conducts two-hour, one-on-one interviews with a sample of 200 middle school students.
A
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Which one of the following is not a weakness of the mixed methods approach to research?
a. Difficulty in collaborating and interpreting the data collected from both methodologies. b. Finding the right tools to analyze the data. c. Extensive expertise is needed to design, collect, and analyze the data. d. Additional time and expenses are needed to conduct the study. e. All of these.
When the variability attributed to between groups is equal to the variability attributed to error, then the value of the test statistic for a one-way between-subjects ANOVA is ______.
A. equal to 0 B. equal to 1 C. significant at any sample size D. undefined in that the test statistic cannot be computed in this case
Place the following steps of the action planning process in order: [a] Spend time reflecting on the process of conducting the action research; [b] Revisit initial research questions; [c] Sketch an answer to each initial research question based specifically on the results of data analysis; and [d] List several ideas for the next cycle of action research.
a. D—A—B—C b. B—A—C—D c. C—B—A—D d. B—C—A—D
The types of practice you can do to prepare for a test are daily, weekly, and __________________
Fill in the blank(s) with the appropriate word(s)