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11 Cards in this Set
- Front
- Back
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What is a study design? |
The design of a study defines the study type |
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Name some study designs. |
Experimental studies; quasi-experimental studies; observational studies; ethnographic studies; case studies |
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What is an experimental study, and how is it ennacted? |
Evaluates causality, usually by different 2 'test' groups which are intervened by to see if there's an effect; by randomization. |
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What is a quasi-experimental study? |
Same as an experimental study, but participants not random due to conditions beyond the role of the experimenter (e.g. race) |
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What is an observational study, and what does it emphasize? |
Observation of what existed before the study (e.g. health outcomes); emphasis on the relationship between 2 or more variables; no control over intervention or control group |
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Name some types of observational study. |
Ethnographic studies; case studies; surveys |
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Name some surveys, and explain what they are. |
Cross-sectional survey (one time study); longitudinal study (a long term study); cohort study (a specific group of people that are cross-sectioned over time) |
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What are some strengths to an experimental study? |
Randomization will balance backgrounds; measures causality; measures uncertainty |
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Name some weaknesses of an experimental study. |
Results are about 'average effects' and not individual variations; Hawthorne effect; is it ethical? (e.g. drug trials) |
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Name some strengths of an observational study. |
Access to situations where questionnaires and interviews aren't possible; could be simple and less time consuming; no instances of Hawthorne effevt |
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Name some weaknesses of an observational study. |
Potential of replication crisis?; cross-sectional study could be limited in explaining why; longitudinal study suffers from attrition |
