A research question can ask about which of the following?

A research question that focuses on a population is appropriate because it allows researchers to explore, analyze, and draw conclusions about specific groups of people or communities. By investigating a particular population, researchers can identify patterns, behaviors, and needs that are crucial for understanding social issues and informing practice in social work. This type of inquiry can encompass aspects such as demographics, social dynamics, health outcomes, and service efficacy, contributing valuable insights to improve interventions and policies.

In contrast, while celebrity opinions may be of interest in some contexts, they do not typically form the basis of rigorous social work research questions because they often lack generalizability and relevance to broader social issues. Current trends and historical data can be important in research but are generally used as contexts or components within broader questions concerning populations rather than standing alone as the focus of research inquiries.