<![CDATA[This study aims to determine the effect of the Numbered Head Together (NHT) cooperative learning model on the learning outcomes of seventh-grade students in Civics education (PPKn) at SMPN 9 Mataram. This quantitative study utilized a quasi-experimental design with a nonequivalent control group design. The study population comprised all seventh-grade students at SMPN 9 Mataram distributed across five classes. The sample was determined using a purposive sampling technique, consisting of class VII A (31 students) as the experimental group and class VII D (31 students) as the control group. Data were collected through multiple-choice cognitive learning outcome tests, model implementation observation sheets, and documentation. Data analysis techniques involved prerequisite tests (Shapiro-Wilk normality and Levene's homogeneity tests) and hypothesis testing using an independent samples t-test. The posttest hypothesis testing yielded a calculated t-value of 0.483 with a significance value (2-tailed) of 0.486. Because the significance value exceeded 0.05 (0.486>0.05) and the calculated t-value was lower than the critical t-table value (0.483<2.000), the null hypothesis (H_0) was accepted and the alternative hypothesis (H_a) was rejected. Based on these statistical results, it is concluded that the implementation of the Numbered Head Together cooperative learning model did not have a significant effect on the cognitive learning outcomes of seventh-grade Civics students at SMPN 9 Mataram compared to conventional instruction. ABSTRAK Penelitian ini bertujuan untuk mengetahui pengaruh model pembelajaran kooperatif tipe Numbered Head Together (NHT) terhadap hasil belajar siswa kelas VII pada mata pelajaran Pendidikan Pancasila dan Kewarganegaraan (PPKn) di SMPN 9 Mataram. Penelitian kuantitatif ini menggunakan metode eksperimen semu (quasi-experimental design) dengan bentuk nonequivalent control group design. Populasi penelitian mencakup seluruh siswa kelas VII SMPN 9 Mataram yang terbagi ke dalam lima kelas. Sampel penelitian dipilih menggunakan teknik purposive sampling, yang terdiri atas kelas VII A (31 siswa) sebagai kelas eksperimen dan kelas VII D (31 siswa) sebagai kelas kontrol. Data dikumpulkan melalui tes hasil belajar kognitif berbentuk pilihan ganda, lembar observasi keterlaksanaan model, serta dokumentasi. Teknik analisis data meliputi uji prasyarat analisis (uji normalitas Shapiro-Wilk dan uji homogenitas Levene) serta uji hipotesis menggunakan independent samples t-test. Hasil pengujian hipotesis pada data posttest menunjukkan nilai t_"hitung" sebesar 0,483 dengan nilai signifikansi (sig. 2-tailed) sebesar 0,486. Karena nilai signifikansi lebih besar dari taraf signifikansi 0,05 (0,486>0,05) dan nilai t_"hitung" lebih kecil daripada t_"tabel" (0,483<2,000), maka H_0 diterima dan H_a ditolak. Berdasarkan hasil analisis tersebut, disimpulkan bahwa penerapan model pembelajaran kooperatif tipe Numbered Head Together tidak memberikan pengaruh yang signifikan terhadap hasil belajar kognitif siswa kelas VII pada mata pelajaran PPKn di SMPN 9 Mataram dibandingkan pembelajaran konvensional. ]]>
