What can make expedited reviews of research quicker in terms of criteria?

The correct choice highlights that expedited reviews involve fewer and less stringent criteria compared to full board reviews, which can significantly speed up the process. In expedited reviews, research projects are assessed based on specific categories outlined by regulatory guidelines, which typically involve procedures that pose minimal risk to participants. This streamlined approach allows ethics committees to make quicker decisions, as they can prioritize certain types of research that meet these established criteria without needing to engage in the more comprehensive assessment required for higher-risk studies.

The other options do not accurately reflect the criteria that expedite reviews typically utilize. For instance, focusing only on participant risk overlooks other important aspects that need consideration beyond just risk. Consideration of recruitment methods, although relevant, is not the sole criterion for expedited review, as the overall risk and methodology of the study are critical components. Furthermore, allowing researchers to proceed without consent is contrary to ethical standards and regulations that protect participant rights and welfare, thereby not applicable in expedited review processes.