T HE SOCIOMETRIC TECHNIQUE developed by Moreno (8) has found widespread use among teachers, counselors, and research workers as a method of determining the social acceptability of pupils in classroom groups. The technique consists simply of having pupils choose a given number of associates for some group activity. The number of choices received by each pupil is referred to as his sociometric status and is commonly used as an index of his social acceptability in that group. Before the sociometric technique can be used for this specific purpose, two questions must be answered: (1) To what extent is sociometric status stable over a given span of time? (2) To what extent does sociometric status vary among different criteria? The sociometric technique would provide an unreliable index of social acceptability if an individual's sociometric status varied considerably from one administration of the test to the next or if it were entirely dependent upon the criterion selected. Thus, although Pepinsky (10) has stated that the concept of reliability, as traditionally used, cannot be applied to the sociometric technique, it seems important to establish the degree to which sociometric status is stable and the extent to which it has generality over criteria. This would indicate the reliability of sociometric status as an index of the social acceptability of the members in a given group. Numerous studies (1, 3, 5, 6, 9, 11) have been concerned with the stability of sociometric status. In general, a fairly high degree of stability has been indicated where the directions have been controlled and the same criteria have been used on two administrations of the test. Specifically, a fairly recent study by Thompson and Powell (11) revealed correlation coefficients of .86 over two administrations of the test given five weeks apart. In four sixth-grade classrooms the pupils were requested to choose associates whom they would take with them if they moved to another classroom, those they would prefer to play with during recess, and those they would prefer as companions while doing what they liked best in school and out of school. Each pupil was permitted to choose three associates for each situation.