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Explain how data analysis in single-subject research typically differs from data analysis in group research. In your answer, identify the primary method used to evaluate treatment effects and describe the role of formal statistical analyses.
Question: Explain how data analysis in single-subject research typically differs from data analysis in group research. In your answer, identify the primary method used to evaluate treatment effects and describe the role of formal statistical analyses.
Sample answer: In single-subject research, data analysis typically differs from group research by relying heavily on visual inspection of individual data rather than averaging across participants and using inferential statistics. This approach involves graphing participants' data to visually detect changes and judge treatment effects. While formal statistical methods are sometimes used as a supplement, they do not replace visual inspection.
Key points:
- Relies on visual inspection of individual data.
- Avoids averaging data across participants.
- Avoids primary reliance on inferential statistics.
- Formal statistical methods are supplemental and do not replace visual inspection.
Rubric: Answers must correctly state that single-subject research relies on visual inspection of individual graphs rather than averaging across participants and using inferential statistics. They should also state that formal statistical methods serve only as a supplement and cannot replace visual inspection.
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Research Methods in Psychology - 4th American Edition @ KPU
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