background and purpose: small group teaching(sgt) in is a known method for developing intellectual skills, changing attitudes and encouraging the taking of responsibilities for learning. this study was an attempt to compare students’ attitudes and knowledge scores on sgt and lecture -based teaching (lbt). methods: 22 first year medical students were enrolled in a course using two methods (lectu...

Groups of individuals can sometimes make more accurate judgments than the average individual could make alone. We tested whether this group advantage extends to lie detection, an exceptionally challenging judgment with accuracy rates rarely exceeding chance. In four experiments, we find that groups are consistently more accurate than individuals in distinguishing truths from lies, an effect tha...