Criteria selection is a process in research where researchers choose specific criteria or parameters to guide their study. These criteria help researchers focus on certain aspects of the research question or problem and determine which variables are most important to consider. Criteria selection is crucial in ensuring that the research is effective, relevant, and impactful. Researchers must carefully consider factors such as the scope of the study, the target population, the research objectives, and the available resources when selecting criteria for their research. By selecting appropriate criteria, researchers can ensure that their study is high-quality, rigorous, and reliable.