<![CDATA[Moral decadence that occurs in the scope of schools, such as bullying, cheating, plagiarism, corruption, and so on, shows the lack of integrity in school-age children. Awareness of integrity needs to develop from an early age. This study aims to create a traditional game-based integrity character education guidebook and determine the quality and effect of its application on the integrity character of children aged 10-12 years. This research was conducted using the ADDIE-type Research and Development (R&D) method. The data were analyzed qualitatively and quantitatively to identify and describe the impact's significance, magnitude, and effectiveness of the implementation. The researchers involved ten students of SD Negeri Jonggrangan at Jonggrangan, Sendangmulyo, Minggir, Sleman as research subjects. The results of research and development of a traditional game-based integrity character education guidebook based on the five steps of ADDIE show (1) the guidebook consider to have "Very good" quality and recommendation "no need to be revised" by nine validators, (2) the application of the guidebook shows results which is significant, has a "big effect" based on the Pearson correlation test and has "high" effectiveness based on the results of the N-gain score test. This study concludes that a traditional game-based integrity character guidebook for children aged 10-12 years was developed based on the ADDIE type research stage, has a "Very good" quality and its application has an effect on the integrity character of children aged 10-12 years. Dekadensi moral yang terjadi di lingkup sekolah, seperti bullying, menyontek, plagiasi, korupsi, tawuran, dan sebagainya menunjukkan kurangnya integritas pada anak usia sekolah. Kesadaran akan pentingnya integritas perlu dikembangkan sejak dini. Penelitian ini bertujuan untuk mengembangkan buku pedoman pendidikan karakter integritas berbasis permainan tradisional, mengetahui kualitas serta pengaruh penerapannya terhadap karakter integritas anak usia 10-12 tahun. Penelitian ini dilakukan menggunakan metode Research and Development (R&D) tipe ADDIE. Data penelitian dikumpulkan melalui teknik nontes dan tes menggunakan instrumen kuesioner terbuka, kuesioner tertutup, dan soal evaluasi penilaian diri. Data yang terkumpul dianlisis secara kualitatif dan kuantitatif untuk mengetahui dan menguraikan signifikansi, besar pengaruh, dan efektivitas dari penerapan buku pedoman. Peneliti melibatkan 10 siswa SD Negeri Jonggrangan yang beralamat di Jonggrangan, RT 01/RW 15, Sendangmulyo, Minggir, Sleman sebagai subjek penelitian. Hasil penelitian dan pengembangan buku pedoman pendidikan karakter integritas berbasis permainan tradisional berdasarkan lima langkah ADDIE menunjukkan (1) buku pedoman dinilai memiliki kualitas “Sangat baik” dan direkomendasi “Tidak perlu direvisi” oleh sembilan validator, (2) penerapan buku pedoman pendidikan karakter menunjukkan hasil yang signifikan, memiliki besar pengaruh yang tergolong “efek besar” berdasarkan uji korelasi Pearson, dan memiliki efektivitas yang tergolong “Tinggi” berdasarkan hasil uji N-gain score. Kesimpulan dari penelitian ini adalah buku pedoman karakter integritas berbasis permainan tradisional untuk anak usia 10-12 tahun yang dikembangkan berdasarkan tahap penelitian tipe ADDIE memiliki memiliki kualitas yang “Sangat baik” dan penerapan berpengaruh terhadap karakter integritas anak usia 10-12 tahun.]]>
