Which of the following is a key benefit of expert opinion in research?

The key benefit of expert opinion in research is particularly pronounced in situations where empirical data is limited. When conducting research, especially in emerging fields or niche areas where there isn't a substantial amount of data available, expert opinions provide insights based on the practitioner's experience, knowledge of the subject, and understanding of context. This expert insight can guide hypotheses, direct future research, and help in making informed decisions even in the absence of comprehensive empirical evidence.

In fields where data may be scarce, expert opinions can help frame the discussion, highlight critical aspects that empirical data may overlook, and pave the way for further research. They can also offer practical implications based on real-world experiences and knowledge that may not yet be captured in published studies. This ability to provide context and direction is invaluable, making expert opinion a critical component of research when empirical data is not fully established.