<![CDATA[Keterlambatan perkembangan bahasa pada anak prasekolah masih tinggi, dimana di Amerika Serikat mencapai sekitar (12-26%) dan di Indonesia sendiri mencapai (22%) keterlambatan perkembangan bahasa, salah satunya disebabkan karena kurangnya pengetahuan dan sikap ibu dalam memberikan stimulasi serta deteksi dini. Penelitian ini bertujuan menilai pengaruh Aplikasi FITRIS (Fitur Deteksi Dini Dan Stimulasi Perkembangan Bahasa) terhadap pengetahuan dan sikap ibu mengenai perkembangan bahasa anak prasekolah. Penelitian menggunakan desain quasi-eksperimental pre-post test dengan 90 peserta (45 intervensi, 45 kontrol) melalui consecutive sampling. Data dikumpulkan dengan kuesioner valid dan dianalisis menggunakan uji Wilcoxon. Hasil menunjukkan Aplikasi FITRIS berpengaruh signifikan terhadap peningkatan pengetahuan (p=0,000) dan sikap ibu (p=0,000). Aplikasi ini membantu ibu memberikan stimulasi dan melakukan deteksi dini pada anak usia 36–72 bulan, serta bisa dijadikan media edukasi dalam program Bina Keluarga Balita (BKB) di Puskesmas untuk mencegah keterlambatan perkembangan bahasa. Kata kunci: aplikasi FITRIS, pengetahuan, perkembangan bahasa, prasekolah, sikap Language development delay in preschool children remains high, reaching approximately 12–26% in the United States and 22% in Indonesia. One of the contributing factors is the lack of maternal knowledge and attitudes toward providing stimulation and conducting early detection of language development. This study aimed to evaluate the effect of the FITRIS Application (Featuring Early Detection and Stimulation of Language Development) on mothers’ knowledge and attitudes regarding preschool children’s language development. A quasi-experimental pre–post test design was employed involving 90 participants (45 in the intervention group and 45 in the control group) selected through consecutive sampling. Data were collected using validated questionnaires and analyzed using the Wilcoxon test. The results showed that the FITRIS Application had a significant effect on improving mothers’ knowledge (p = 0.000) and attitudes (p = 0.000). This application assists mothers in providing stimulation and performing early detection of language development in children aged 36–72 months and can be utilized as an educational medium within the Bina Keluarga Balita (BKB) program at Primary Health Centers (Puskesmas) to prevent language development delays. Keywords: attitude, FITRIS application, knowledge, language development, preschool]]>
