## EDUC 815 Quiz Quantitative Research

EDUC 815 Quiz Quantitative Research Designs

1. What is the important difference between the posttest-only control- group design and the posttest-only design with nonequivalent groups?
2. Differential influence refers to ______.
3. A eld experiment is an experiment that is conducted ______.
4. A researcher studies a new mathematics program. At the beginning of the year, 100 students are randomly assigned to receive a new program, and 100 students are randomly assigned to use the previously used mathematics program. The participants are pretested at the beginning of the year, and they are post-tested at the end. What kind of experimental design did the researcher use?
5. Two teachers who are friends teach math at different high schools. At a conference, they learn about a new program for teaching trigonometry. They decide to test it by having one teacher use it in her class, and the other teacher use the traditional program. At the end of the school year, they compare their students’ scores on the AP trigonometry test. This is an example of which research design?
6. Inferences from group comparisons are made stronger when
7. Which of the following is an example of “type technique” of variation of the independent variable?
8. The variable that is influenced by a treatment is known as the
9. A researcher does a study examining the effects of a preschool program. He uses a nonequivalent comparison-group design. He finds that the cognitive growth of his experimental group is greater than that of his control. Unfortunately, he later finds that, in general, children who live in the area where he drew his experimental group tend to grow faster cognitively than children who were from the area where he drew his control group. When he discovered this problem, he discovered what threat to the internal validity of his study?
10. A single-case experimental design in which the response to the experimental treatment condition is compared to baseline responses taken before and after administering the treatment condition. What design is this?
11. A limitation of the A-B-A and A-B-A-B single-case designs is that
12. When using a multiple-baseline design, a limitation is that ______.
13. Which series shows a potential maturation effect?
14. At the conclusion of a study, a researcher was able to claim that a finding was statistically significant. What did this mean for anyone who read their report?
15. A post hoc fallacy means a researcher has made what type of error?
16. A researcher studies the relationship between early reading and later school achievement. She decides that a potentially important extraneous variable is IQ. In developing her groups for her study, she pairs each child who was an early reader with a child of the same IQ level who was not an early reader. The control technique she used was
17. When data are collected at one point in time from different types of people, this is called a
18. Marilyn developed a sample of individuals who had completed graduate school. She then had them complete questionnaires pertaining to elementary school, middle school, high school, and college. Marilyn’s design is
19. In which form of research is the data collected at a single time point?
20. Differential attrition is a problem in which type of research study?
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