What term is used to describe a specified group of individuals for whom questions can be asked in research?

The term that accurately describes a specified group of individuals for whom questions can be asked in research is "defined target population." This term refers to the specific group that researchers are interested in studying and from which they ultimately want to draw conclusions or insights. This population should have clear characteristics that distinguish them from other groups, making it easier to tailor research questions and ensure that the results are relevant and applicable to the group being studied.

This concept is crucial in marketing research as it helps to focus the study, ensuring that the data collected is pertinent and valuable for the objectives of the research. A clearly defined target population also supports effective sampling strategies and enhances the validity of the research findings.

In contrast, other terms like "research population" might refer more broadly to all individuals relevant to the study but not specifically the subset targeted for specific questions. "Target sample" typically refers to the subset of the defined population that is actually selected for the research, and "survey group" is often used to describe those participating in a survey, which can include individuals who may not fit the criteria of the defined population. Thus, the "defined target population" is the most precise and applicable term for identifying the specified group relevant to the research.