Study Designs, Methods and Tools

FALSE statement regarding qualitative and quantitative studies.

• Quantitative study often used in exploratory research design

• The purpose of qualitative study is to discover ideas

• A researcher is intimately involved in the qualitative study and the results are subjective

• Quantitative study need large samples to allow for generalization

Which of the following is NOT an analytic study design?

• Randomized controlled trial

• Case series

• Ecologic

• Cohort

Which of the following is TRUE based on the strength of evidence of a study design?

• A case-control study is stronger than a cohort study

• An ecologic study is stronger than a cross-sectional study

• Case series is weaker than a case report

• Meta-analysis is stronger than randomized controlled trials

Which of the following is NOT a prospective study?

• Randomized controlled trial

• Case-control study

• Cohort study

• Quasi-experimental study

TRUE statement on the disadvantage of cross-sectional study design.

• Expensive

• Prone to recall bias

• A weak observational design that measures prevalence only

• High tendency loss to follow-up

Which of the following is NOT the advantage of a case-control study?

• Can determine the temporal sequence of exposure and effect

• Relatively less time consuming

• Multiple etiologic factors evaluated for a single disease

• Efficient for studying rare disease

Which of the following is a non-probability sampling method?

• Simple random sampling

• Cluster sampling

• Convenience sampling

• Stratified sampling

The following best describes the validity of an instruments/tools

• Precision

• Accuracy

• Consistency

• Repeatability