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Justify why both of these proposed methods are valid examples of operational definitions for the abstract construct of depression, based on the principles of making psychological constructs measurable.
Case context: A research team is planning a study on the effects of social media use on mental health. They know that depression is an abstract construct, so they must operationally define it to make it measurable. One researcher suggests having participants take the Beck Depression Inventory and recording their scores. Another researcher suggests reading through participant medical files to confirm a history of major depressive disorder.
Question: Justify why both of these proposed methods are valid examples of operational definitions for the abstract construct of depression, based on the principles of making psychological constructs measurable.
Sample answer: Both methods are valid operational definitions because they take the abstract concept of depression and translate it into specific, measurable variables. The first method uses a participant's numerical score on a standardized paper-and-pencil scale, while the second method relies on verifying the presence of a formal clinical diagnosis, both of which provide objective data that researchers can record and analyze.
Key points:
- Explaining that operational definitions translate abstract constructs into measurable variables.
- Justifying the use of a paper-and-pencil scale score (like the Beck Depression Inventory) as a measurable outcome.
- Justifying the verification of a formal clinical diagnosis as an objective measurement.
Rubric: The response should justify the methods by explaining that both approaches successfully translate the abstract construct of depression into a concrete, measurable format, specifically identifying the use of a scale score and a formal clinical diagnosis as legitimate measurement strategies.
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Research Methods in Psychology - 4th American Edition @ KPU
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