The folklore hypothesis that suicidal individuals think in a rigid manner was evaluated by the California F Scale and the Rokeach Map Test. They were administered to a suicidal attempt group,a group of psychosomatic patients, and to hospitalized normal Ss. It was found that the suicidal group earned significantly higher California F Scale scores (p <.01), and that they also shifted significantly fewer times (p <.01) on the Rokeach Map Test, when compared with the other 2 groups.