Qualitative Data Collection
At the heart of your research is the data or information that you need to answer your research questions and achieve your research goals. You may require direct interaction with people, tangible experiences, or indirect information found in a museum. Each type of data collected has unique procedures in which we can provide expert advice.
Sampling
What is it? Sampling is the process of selecting people from a population or data from larger sources of data for a research project. The type of research design and the research questions can inform the sample size and who should participate in a study. Sampling goes hand-in-hand with recruitment. Sampling decisions should be made first, then recruitment can be implemented.
Sampling techniques are divided into clusters of probability and non-probability. Probability sampling is popularly used in mixed methods and in quantitative research projects; however, there are some projects that apply this approach in generic qualitative research designs. It is considered random selection or ensuring that people in a population or a type of data have an equal chance of being chosen. Non-probability sampling is where participants are selected because they meet specific criteria, and is popular in qualitative research because the research goals are usually to gain in-depth understanding of a culture, small group, or a single case. There are various types of non-probability sampling, including: convenience, purposive, and snowball sampling.
When you map out all the logistics involved in your project, you may recognize that your sampling method may need further examination. In another instance, you may need to make changes to sampling when you begin collecting data. Our consultants can assist you in selecting the most suitable sampling method(s) for your qualitative project.
How can we help you?
- Help you consider different types of sampling options for your project
- Clearly articulate the rationale for the type of sampling used
Related Services
Publications: Articles, Books, Op-ed
For academic journals, qualitative data insights may need more information than if you are writing a newspaper or practice-based journal article.
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Cultural context is the broad range of beliefs and practices that guide the behavior of research participants and researchers.
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In qualitative research, a survey is a set of open-ended questions used to explore diverse views primarily among a large number of people.
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Cultural context is the broad range of beliefs and practices that guide the behavior of research participants and researchers.
Learn MoreArticles and White Papers About Sampling
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Read MoreFAQ About Sampling
Each arts-based or arts-informed research is unique due to the nature of qualitative research as a method of inquiry on topics that have little to no research. A researcher may choose to focus on oneself or one participant or have over 25 participants. Some research in Qual Research Design: Arts-Based/Arts-Informed have no participants.
Delphi study requires three or more rounds of collecting data from experts on a topic. A project can take 3 or more months.
Availability and access to participant-experts will inform the number of participants. Some Delphi studies recruit as much as 1000, while some have a panel of 7 experts.
Ethnography requires the immersion in a culture for an extended period of time. Successful ethnographic studies should be conducted no less than 6 months.
There are different forms of ethnographic research designs. Some forms are discipline-specific, e.g. feminist ethnographies, realist ethnography. Some ethnographic projects are informed by the types of settings for the immersion and collection of data, e.g. medical ethnography, business ethnography.
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Peggy Ostrander, DNPc, APRN, FNP-C Plano, Texas