Penelitian ini bertujuan mengetahui efektivitas psikoedukasi KAMI SIAP untuk meningkatkan pengetahuan guru anak usia dini mengenai kesiapan bersekolah. Desain penelitian yang digunakan adalah within-subjects experimental design. Intervensi berupa psikoedukasi dilakukan sebanyak dua sesi dengan pengumpulan data sebelum dan sesudahnya. Melibatkan 19 orang partisipan guru anak usia dini. Untuk mengukur pengetahuan guru alat ukur dirancang sendiri oleh peneliti dan Teachers’ Belief about Child Based Dimensions of School Readiness (versi bahasa Indonesia). Hasilnya, menunjukkan bahwa psikoedukasi KAMI SIAP efektif untuk meningkatkan pengetahuan (Z = -2,749, p < 0,05, two tailed) guru anak usia dini mengenai kesiapan bersekolah.

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The aim of this study was to see the effectiveness of KAMI SIAP psychoeducation to improve preschool teachers’ knowledge on school readiness. The type of research that used in this study was within-subjects experimental design. The psychoeducation intervention was carried out in two sessions with data collection before and after. Involving 19 participants preschool teachers. Instrument was designed by researcher to measure teachers’ knowledge and Teachers' Belief about Child-Based Dimensions of School Readiness (Indonesian version) was used. The result indicate that KAMI SIAP psychoeducation was effective to improve preschool teachers’ knowledge (Z = -2.749, p < 0.05, two tailed) on school readiness.