The purpose of this study was to develop a teacher's identity scale for extracurricular sports activities and to compare cognition of identity among attributes. The participants were 328 junior high school teachers (male: 225, female: 103, age: M=38.0, SD=11.62). Exploratory factor analysis revealed 2 factors (teacher identity and coach identity) that were composed of 39 items. In addition, the results indicated the reliability (internal consistency) and validity (factor validity, criterion-related validity) of the teacher's identity scale for extracurricular sports activities. The result of t test and one-way analysis of variance revealed significant differences between attributes. This study confirmed the reliability and validity of the teacher's identity scale for extracurricular sports activities. The result of comparisons among attributes suggested that different teacher's attributes were also different from the cognition of identity.
