Identify and explain the three primary strategies group researchers use to address the risk of group means obscuring individual-level treatment effects.
Question: Identify and explain the three primary strategies group researchers use to address the risk of group means obscuring individual-level treatment effects.
Sample answer: To address the risk of group means obscuring individual-level treatment effects, group researchers use three main strategies: 1) Examining distributions of individual scores, such as looking for a bimodal distribution in a histogram; 2) Utilizing within-subjects designs to observe treatment effects directly at the individual level; and 3) Employing factorial designs to determine if treatment effects vary systematically across different participant subgroups.
Key points:
- Examining distributions of individual scores (e.g., identifying bimodal distributions in a histogram).
- Utilizing within-subjects designs to observe effects at the individual level.
- Using factorial designs to check if treatment effects vary systematically across different participant subgroups.
Rubric: To receive full credit, the response must identify all three strategies: (1) examining individual score distributions (e.g., histograms, bimodal patterns), (2) using within-subjects designs to observe individual-level effects, and (3) using factorial designs to check for variation across subgroups.
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Research Methods in Psychology - 4th American Edition @ KPU
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