This study examined the effect of early childhood teachers' perceptions of teacher efficacy and professionalism, which are personal traits, when administering the National Childcare Curriculum. Methods: Using snowball sampling, data were collected from 266 childcare center teachers in the nation and were analyzed using one-way analyses of variance and multiple regression using SPSS 14.0.
Results and Conclusion:The findings are as the following: First, teacher efficacy was not significantly different among teachers by age, teaching experience, education, and childcare center type. Second, teacher efficacy was significantly related to the perception of their professionalism. Lastly, teachers' perceptions of teacher efficacy and professionalism explained significantly the variance in teachers' performance when administering the National Childcare Curriculum.