A study includes participants that are female, ages 28 to 48, and pregnant with a first child. What research method is being exemplified?

The selection of participants in the described study signifies a sampling method. Sampling involves defining a specific segment of the population from which data can be collected, and this study is focused on a particular subgroup of women, notably those who are female, within a specific age range of 28 to 48 years, and who are experiencing their first pregnancy. This approach allows researchers to gather information that can lead to insights that are relevant to this unique group, which is critical in understanding aspects specific to first-time pregnancies in that demographic.

Effective sampling is crucial in research as it determines the applicability and relevance of the findings to the larger population. By narrowing the focus to a particular set of criteria, such studies can yield data that is more meaningful and pertinent for the target demographic, potentially leading to improved findings and conclusions relevant to first-time pregnancies.

While feedback, control groups, and qualitative research are important research concepts, they do not accurately represent the method of participant selection indicated in the scenario. Feedback refers to the process of gathering responses from participants regarding their experiences, control groups are utilized in experimental designs to provide a basis for comparison, and qualitative research often focuses on understanding perceptions and experiences related to phenomena rather than on a defined sampling of participants. Thus, the correct identification of sampling