Pragmatic sampling is a non-probability sampling technique where researchers select participants based on their accessibility and suitability for the study. This method is often used when researchers need to quickly gather data from a convenient group of individuals, especially when resources or time are limited.
Key Features of Pragmatic Sampling:
- Convenience: Participants are chosen because they are readily available and easy to reach.
- Accessibility: Researchers focus on individuals who are easily accessible, such as students, employees, or members of a particular community.
- Suitability: Researchers select participants who possess specific characteristics relevant to the study's objectives.
Advantages of Pragmatic Sampling:
- Cost-effective: It requires less time and resources compared to other sampling methods.
- Time-efficient: Researchers can quickly gather data from readily available participants.
- Practical: It is a practical approach for exploratory studies or when resources are limited.
Disadvantages of Pragmatic Sampling:
- Bias: The sample may not be representative of the population, leading to biased results.
- Limited generalizability: Findings from a pragmatic sample may not be generalizable to the larger population.
- Lack of control: Researchers have less control over the selection of participants, potentially introducing unintended variables.
Examples of Pragmatic Sampling:
- A researcher conducting a study on student attitudes towards online learning might choose to sample students from their own university classes.
- A market research company might use pragmatic sampling to interview shoppers at a local mall to gather feedback on a new product.
- A social worker might use pragmatic sampling to interview individuals seeking services at a community center to understand their needs.
Practical Insights:
- Pragmatic sampling is best used for exploratory research or when resources are limited.
- Researchers should be aware of the potential for bias and limitations in generalizability when using this technique.
- It is important to clearly document the sampling method used and its potential limitations in research reports.
