(Relevancy, Appropriateness, Detail, Currency, Authority, Bias) Guidelines for researchers for evaluating articles and websites by educator Karen Christensson. RADCAB covers the following criteria (for details, visit www.radcab.com). Is the information relevant and applicable? Is the information appropriate for our audience? Is there sufficient detail? Is the information current? Who/what is the authority behind the information? Is the information biased and opinionated?