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You explained the idea of a sampling frame very well, and your description connects closely with how Farmer and Farmer (2020) define it. They describe a sampling frame as the full list or outline of all units in the accessible population once the researcher knows exactly who or what the unit of analysis is. This list becomes the foundation for selecting a sample, which is why having a clear and accurate frame is so important.

Farmer and Farmer (2020) also point out that the strength of a sampling frame affects the overall quality of a study. If the frame is incomplete or missing key groups, the sample may not reflect the population the researcher hopes to understand. The elements you mentioned such as demographic details, contact information, and criteria for who can participate fit well with the types of information that help researchers create a reliable and usable sampling frame.

Your breakdown highlights how thoughtful planning at this stage supports stronger research outcomes, especially in social work where understanding the population accurately can directly impact services and interventions.

In your view, what strategies could help researchers make sure their sampling frame reflects the population as completely as possible?