More than 300 adults responded to a telephone survey designed to examine whether the gender of the source and the similarity of gender between the source and the receiver affected the receiver's perception of source credibility. The results indicated that (1) men had more overall credibility than did women, (2) women recognized that they would have more credibility if they were men, (3) men recognized that they would have less credibility if they were women, and (4) both sexes recognized that they would have higher credibility with other persons of the same sex than with persons of the opposite sex, and that persons of the same sex would have more credibility with them. (FL)