Qualitative Sampling Methods and Sample Size Quiz

Questions and Answers

To provide rich data to understand the phenomenon studied

By judgment and experience in evaluating collected information quality

To identify participants with direct and personal knowledge of the study topic

Whether they are information-rich Signup and view all the answers

Judgment based on data saturation Signup and view all the answers

Qualitative research requires larger sample sizes than quantitative research. Signup and view all the answers

Data saturation happens when there is no new information obtained from interviews and/or observations. Signup and view all the answers

Because fewer participants make the study more manageable for the researcher. Signup and view all the answers

To ensure that interviews are conducted in a standardized manner. Signup and view all the answers

To convince readers that their findings are accurate and reliable. Signup and view all the answers

Study Notes

The goal of qualitative sampling is to choose participants and/or observations that provide rich data to understand the phenomenon studied.
Qualitative sampling is non-random and uses non-probability sampling methods.
Participants are recruited based on their ability to provide information (data) to answer the research question.
Participants must have "direct and personal knowledge" of the study topic and be willing to share and reflect on their experiences.

Convenience sampling: selecting participants or sites based on ease of access.
Snowball sampling: selecting participants or sites through referrals from initial participants.
Purposive sampling: selecting participants or sites based on their expertise or experience.
Theoretical sampling: selecting participants or sites based on their ability to provide data that fits the emerging theory.

Sample sizes in qualitative research are smaller than in quantitative research.
The standard for sample size is whether the participants and sites are "information rich".
The number of participants or observations required depends on the scope of the study and the quality of the data provided.

Data saturation occurs when no new information is obtained from interviews and/or observations.
Qualitative researchers often report reaching data saturation when collecting enough data.
The point of data saturation is determined by the researcher's judgment and experience.

An interview protocol is a form designed by the researcher containing instructions for the interview process, questions to be asked, and space to take notes.
Researchers must ask for permission before recording the interview.