By the 1950s, coherence was also included. The "criterion of coherence" (also called "criterion of consistency" or "criterion of conformity") can be used only when other material has been identified as authentic. This criterion holds that a saying or action attributed to Jesus may be accepted as authentic if it coheres with other sayings and actions already established as authentic. While this criterion cannot be used alone, it can broaden what scholars believe Jesus said and did. For example, Jesus' teaching in concerning the resurrection of the dead coheres well with a saying of Jesus in Q on the same subject of the afterlife (reported in /), as well as other teachings of Jesus on the same subject.