Question

3. Give an example of a study (real or hypothetical) that suffers from selection bias.

4. Give an example of a study (real or hypothetical) that suffers from recall bias.

Answer 1

Answer 3= The selection bias is the bias that is created when the population for the research is incorrect.

Example= The study to analyze the performance of the manager working in night shift and the performance of the supervisors in day shift

The above study has the selection bias as the sample population has different traits. The managers have different levels of expertise and experience than that of supervisors. So there is no similarity in the sample and thus there is a selection bias.

Answer 4= Recall bias occurs when then participants in the research are not able to remember the previous incidences

Example= To analyze the infection rate in the children suffering from cancer

The problem in the above scenario is that the parents of the children who have cancer are most likely to remember and recall the incidences of infection than the parents of those children who are not having cancer,