What is a common disadvantage encountered in literature reviews?

The choice regarding limited access to certain information accurately highlights a common disadvantage faced when conducting literature reviews. Researchers often encounter barriers to accessing a variety of sources, including paywalled journal articles, proprietary databases, and restricted archives. These limitations can hinder a comprehensive understanding of the existing body of literature and may result in an incomplete or biased review.

In contrast, options that suggest all sources are readily available or the immediate publication of findings do not represent frequent challenges encountered in literature reviews. Additionally, failure to identify previous research findings can stem from not accessing all relevant literature; however, this is more of a consequence of limited access than a standalone disadvantage of the literature review process itself. Therefore, the issue of restricted access aligns closely with the broader challenges faced in gathering comprehensive and representative information for a thorough literature review.