a) Complete the following table titled ‘Applications of Different Observational Study Designs’ indicating for every objective under the pertinent study design if objective is ‘suitable’ or ‘not suitable’
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Applications of Different Observational Study Designs Objective |
Case Control |
Cohort |
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Investigation of rare disease |
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Investigation of rare exposure |
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Investigation of long latent periods |
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Study of multiple exposures and determinants |
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Measurement of time relationship |
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Direct measurement of Incidence |
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b) Complete the following given table titled ‘Benefits and de-merits of different the observational Study Designs’ indicating for every event applicable to the pertinent study design if probability of such an event is ‘high’ or ‘low’. In case you believe the probability between study designs is same then indicate ‘same’.
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Different Observational Study Designs Event |
Case Control |
Cohort |
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Selection bias |
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Recall bias |
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Loss to follow-up |
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Confounding affecting validity |
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Long time required |
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High cost |
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