31 Jan Question 7What is the most common sampling strategy in qualitative research methods?

MPH501 Quantitative Methods for Public Health Application

Module 1 Quiz

Question 1A study is planned to assess the effect of a new surgical intervention for kidney stones. One hundred-fourteen patients with kidney stones will be randomly assigned to receive either the new surgical intervention or the standard surgical intervention. The efficacy of the new surgical intervention will be measured by the time it takes a patient to return to normal activities, measured in days. Identify the type of study proposed and indicate its specific strengths and weaknesses.

Question 2An investigator wants to assess whether increased levels of pesticide exposure is a risk factor for colon cancer. Electronic medical records at a local hospital will be used to identify 74 patients with colon cancer. One hundred eleven patients who are similar but free of colon cancer will also be selected. Each participant’s medical record will be analyzed for pesticide exposure history. Identify the type of study proposed and indicate its specific strengths and weaknesses.

Question 3Describe at least two sources of bias in the study described in Question 3.

Question 4Which of the below is not the most common qualitative method?

Surveys

Participant observation

In-depth interviews

Focus groups

Question 5What type of data is generated from qualitative research methods? Select all that apply.

Field Notes

Audio (or video) recordings

Transcripts

Questionnaire data

Question 6Qualitative seeks to ________ phenomena, while quantitative seeks to _________ hypotheses about phenomena.

Explore, Confirm

Confirm, Seek

Explore, Seek

Confirm, Explore

Question 7What is the most common sampling strategy in qualitative research methods?

Purposive

Snowball