Study designs
9 important questions on Study designs
Percentage research performed on white males/ male animals?
So, observational studies. Ecological, cohort, cross sectional. What are the pros and cons of ecological studies?
- Easy
- Large population
- association on population level
- no control over confounders
- no temporality
- ecological fallacy?
So, observational studies. Ecological, cohort, cross sectional. What are the pros and cons of cohort studies?
- Individual analysis => easier to see confounders
- Temporal relation
- smaller sample size compared to ecological
- more expensive then ecological
- selection bias?
- Higher grades + faster learning
- Never study anything twice
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So, observational studies. Ecological, cohort, cross sectional. What are the pros and cons of cross sectional studies?
- quick
- multiple outcomes simultaneously
- prevalence at a certain time
- hypothesis generation possible
Con
- not for rare diseases
- selection bias and confounding
- no temporal relation
Another observational study are case reports. Pro and cons.
- Rare diseases
- hypothesis generation is possible
- Easy to conduct
- No causality
- Not generalisable
- publication bias
Pros and cons of case control studies.
- Rare diseases
- Fewer participants
- multiple exposures for one outcome
Con
- potential risk for selection bias
- recall bias
- no incidence or prevalence
What are pragmatic trials?
Which three types of survey do exist?
- Exploratory: what, how, why, open vragen
- Descriptive: what, how, when, who, gesloten vragen
- Explantory: why, highly structured vragen. TEST HYPOTHESIS
Pros and cons for survey?
Social desirability bias => self report bias
Difficult to reach certain populations => laag geletterden.
limited depth
The question on the page originate from the summary of the following study material:
- A unique study and practice tool
- Never study anything twice again
- Get the grades you hope for
- 100% sure, 100% understanding
