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A researcher wants to study the effect of a new anti-bullying curriculum using a one-group pretest-posttest design. Briefly describe the exact sequence of steps the researcher must take to measure the dependent variable (students' attitudes toward bullying) and administer the treatment according to this specific quasi-experimental design.
Question: A researcher wants to study the effect of a new anti-bullying curriculum using a one-group pretest-posttest design. Briefly describe the exact sequence of steps the researcher must take to measure the dependent variable (students' attitudes toward bullying) and administer the treatment according to this specific quasi-experimental design.
Sample answer: The researcher must first measure the students' attitudes toward bullying to establish a baseline pretest. Next, the researcher will administer the new anti-bullying curriculum, which is the treatment, to the single group of students. Finally, the researcher will measure the students' attitudes toward bullying a second time for the posttest to see if there is an improvement compared to the baseline.
Key points:
- Measure the dependent variable (attitudes toward bullying) before the treatment to get a baseline (pretest).
- Administer the treatment (the anti-bullying curriculum) to the single group.
- Measure the dependent variable (attitudes toward bullying) again after the treatment (posttest).
Rubric: The answer must correctly identify the exact chronological sequence of a one-group pretest-posttest design: first administering a pretest, then applying the treatment, and finally administering a posttest to the same single group.
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Research Methods in Psychology - 4th American Edition @ KPU
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Example of a One-Group Pretest-Posttest Design
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A researcher wants to study the effect of a new anti-bullying curriculum using a one-group pretest-posttest design. Briefly describe the exact sequence of steps the researcher must take to measure the dependent variable (students' attitudes toward bullying) and administer the treatment according to this specific quasi-experimental design.