The purpose of this article is to introduce the concept, measurement, and research on collective teacher efficacy. First, the definitions, conceptual foundations, and characteristics of collective teacher efficacy were explained. Then the measurement instruments of collective teacher efficacy as well as related measurement issues were explored. In addition to reviewing the empirical research findings of collective teacher efficacy, this article also analyzed the relationships between teacher self-efficacy and collective teacher efficacy. Finally, future research trends in collective teacher efficacy were discussed.
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