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Explain why the researcher's argument is incorrect based on the definition of a case study. Clarify what types of entities can be examined under this methodology and explain how the team can incorporate both qualitative and quantitative data collection tools to study the twins over time.
Case context: A group of researchers is interested in understanding the long-term cognitive and emotional development of conjoined twins who share a bridge of brain tissue. A member of the research team argues that because conjoined twins represent a pair (two individuals) and are not a single individual, the team cannot use a case study methodology. Instead, they argue that the case study method is strictly reserved for single individuals with brain damage or rare conditions.
Question: Explain why the researcher's argument is incorrect based on the definition of a case study. Clarify what types of entities can be examined under this methodology and explain how the team can incorporate both qualitative and quantitative data collection tools to study the twins over time.
Sample answer: The researcher's argument is incorrect because a case study is defined as an in-depth, often longitudinal examination of an individual, social unit, or event. A pair of conjoined twins can be classified as a social unit, making them suitable subjects for a case study. To study them over time, the team can use qualitative tools, which are primary to case studies, such as conducting detailed interviews with the twins and their family, or utilizing naturalistic observation. Additionally, they can incorporate quantitative data to enrich their write-up, such as administering standardized psychological testing to assess cognitive functions, or performing physiological measurements like brain scans to analyze the shared brain tissue.
Key points:
- A case study can examine an individual, social unit, or event.
- Conjoined twins can be examined as a social unit under case study methodology.
- The research can use qualitative tools like interviews and naturalistic observation to describe the twins' development.
- Quantitative data like psychological testing and physiological measurements can be incorporated to supplement the qualitative description.
Rubric: The response must demonstrate comprehension of the case study definition by explaining: 1) A case study is not limited to a single individual, but can study a social unit or event; 2) Conjoined twins can be studied as a social unit; 3) The study can be longitudinal; 4) The researchers can combine qualitative tools (interviews, naturalistic observation) with quantitative data (psychological testing, physiological measurements) to examine the twins.
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Research Methods in Psychology - 4th American Edition @ KPU
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