Which statement about expedited reviews is true?

Expedited reviews can indeed be completed by one designated Institutional Review Board (IRB) member. This process is designed to streamline the review of research protocols that pose minimal risk to participants, allowing for a more efficient evaluation without needing the entire board present. This means that certain studies, typically involving minor changes to previously approved research or research with minimal risk, can be reviewed and approved faster, which is essential for promoting timely research without compromising participant safety.

The other statements do not accurately reflect the nature of expedited reviews or the functioning of full board reviews. For example, expedited reviews are not about a simplified set of criteria but rather focus on specific categories of research that can be reviewed under expedited procedures, often requiring thorough scrutiny of ethical standards even though the full board isn't convened. Regarding full board reviews, while they do typically assess higher-risk studies, they are not limited exclusively to these types of research, as they can also review any study that requires more comprehensive evaluation. Additionally, full board reviews can often occur even if all members are not present, as some protocols allow for decisions if a quorum is met, as long as defined procedures are followed.