What methods were used to recruit study participants

Reference no: EM133292372

Question 1. What methods were used to recruit study participants?

Question 2. What methods were used to retain study participants?

Question 3. How did the investigators define the outcome?

Question 4. How did the investigators measure the outcome?
a. Who are diseased?
b. Who are non-diseased?

Question 5. Can you identify major biases in terms of measurement of the outcome?
a. What effect would these biases, if present, have on the internal validity of the study?
b. What effect would these biases, if present, have on the external validity of the study?

Question 6. Did the investigators collect information on potential confounders?

Question 7. What are the main findings of the study?

Question 8. Do the main findings that the investigators report match the stated purpose of the study?

Question 9. Taking everything into account, do you feel that this study has good internal validity?

Question 10. Taking everything into account, do you feel that this study has good external validity?

Reference no: EM133292372

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