To determine the extent to which males and females bring similar or dissimilar attitudes of trust to encounters with members of the same or the opposite sex, a study was conducted that examined attitudes of interpersonal trust according to the subject's perception of the expertness (validity of judgment), reliability, and dynamism of the attitude object. For the study, 102 males and 135 females were tested on a 27-item semantic differential instrument and the results were analyzed according to the variables of sex of subject, sex of attitude object, and relationship to attitude object (closest friend or that sex in general). The study revealed the following: females perceived people of both sexes to be more expert and hold stronger attitudes of interpersonal trust than did males; neither males nor females were perceived to be more or less expert overall by both sexes, but men considered males to be more expert than females; both sexes perceived females as higher on the character dimension of the test and males were perceived as more dynamic; and closest friends of both sexes were rated higher on all three dimensions than were both sexes in general. (MAI)