<![CDATA[The Academic Ability Test (AAT) is a standardized assessment instrument essential for mapping students' cognitive potential; however, inconsistencies between AAT scores and classroom report card achievements demand empirical verification regarding the extent to which AAT predicts learning success. This study aims to examine the relationship between the results of the Academic Ability Test (AAT) and students' academic achievement at SMAN 1 Mandastana. This research employed a quantitative approach with an ex-post facto correlational design. The sample consisted of 179 twelfth-grade students selected through purposive sampling based on complete AAT scores and report card documentation. Data were collected via institutional documentation and analyzed using the Pearson Product Moment correlation with SPSS version 25. The results indicated that the standardized mean scores for both AAT and academic achievement were 200.03. Correlation analysis demonstrated that most relationships between AAT scores and academic performance were very weak to weak. A statistically significant relationship was only identified in Indonesian Language Group 5 (r=0.407; p=0.026<0.05), representing a moderate correlation. These findings suggest that AAT cannot be used as the sole predictor of students' academic achievement, as academic outcomes are concurrently influenced by non-cognitive factors, learning motivation, and instructional environments. ABSTRAK Tes Kemampuan Akademik (TKA) merupakan instrumen asesmen terstandar yang penting dalam memetakan potensi kognitif siswa, namun inkonsistensi antara skor TKA dan nilai capaian rapor harian di sekolah menuntut pengujian empiris mengenai sejauh mana TKA mampu memprediksi keberhasilan belajar. Penelitian ini bertujuan untuk menganalisis hubungan antara hasil Tes Kemampuan Akademik (TKA) dengan prestasi akademik siswa SMAN 1 Mandastana. Penelitian menggunakan pendekatan kuantitatif dengan desain korelasional ex-post facto. Sampel penelitian berjumlah 179 siswa kelas XII yang dipilih menggunakan teknik purposive sampling dengan kriteria memiliki dokumentasi skor TKA dan nilai rapor yang lengkap. Data diperoleh melalui studi dokumentasi dan dianalisis menggunakan uji korelasi Pearson Product Moment dengan bantuan SPSS versi 25. Hasil penelitian menunjukkan nilai rata-rata skor baku TKA dan prestasi akademik masing-masing sebesar 200,03. Analisis korelasi menunjukkan bahwa sebagian besar hubungan antara TKA dan prestasi akademik berada pada kategori sangat lemah hingga lemah. Hubungan signifikan hanya ditemukan pada mata pelajaran Bahasa Indonesia Kelompok 5 (r=0,407; p=0,026<0,05) pada kategori sedang. Secara keseluruhan, TKA belum dapat dijadikan sebagai prediktor tunggal prestasi akademik siswa di sekolah karena pencapaian akademik turut dipengaruhi oleh faktor non-kognitif, motivasi belajar, dan lingkungan pembelajaran. ]]>
