ABSTRAK
Latar Belakang: Kapasitas cranium menunjukkan volume otak seseorang. Volume otak digunakan untuk memperkirakan inteligensi seseorang. Inteligensi merupakan kemampuan seseorang dalam mempelajari dan memahami sesuatu yang baru. Inteligensi diatur oleh korteks otak sebelah kiri. Prestasi belajar dipengaruhi oleh inteligensi atau tingkat kecerdasan. Tujuan penelitian ini adalah untuk mengetahui hubungan estimasi volume otak dengan prestasi belajar.
MetodePenelitian:Penelitian iniadalahpenelitian observasionalanalitikdenganpendekatanstudipotonglintang dan telah dilakukan diFakultas KedokteranUniversitasSebelasMaret pada Oktober 2015. Sampel dari penelitian ini adalah mahasiswalaki-lakiFakultasKedokteranangkatan 2012. Enam puluh sembilan sampel diambil secara simple random sampling. Estimasi volume otak diukur dengan pengukuran panjang, lebar, dan tinggi kepala dan prestasi belajar diukur dengan rata-rata nilai ujian blok. Analisis data yang digunakan yaitu uji korelasi Pearson.
HasilPenelitian:Hasil pengukuran menunjukkan bahwa rata-rata estimasi volume otak yaitu 1614,35, ± 105,08 cc sedangkanrata-rata prestasi belajar yaitu 63,9, ± 4,48. Jumlah sampel yang memiliki estimasi volume otak diatas 1500 cc sebanyak 85,5%, sedangkan 14,5% memiliki estimasi volume otak dibawah 1500 cc. Mayoritas sampel (89,9%) memiliki prestasi belajar cukup sedangkan 10,1% sampel memiliki prestasi belajar baik,Pada uji korelasi Pearson didapatkan nilai p = 0,000 dan r = 0,555.
Simpulan: Ada hubunganpositif antaraestimasivolume otakdenganprestasibelajarpadaMahasiswa Program StudiKedokteranFakultasKedokteranUniversitasSebelasMaret. Dengan demikian, dapat dikatakan bahwa semakin tinggi estimasi volume otak maka semakin tinggi prestasi belajar.
Kata kunci: estimasi volume otak,prestasi belajar, mahasiswa kedokteran
ABSTRACT
Background: Cranium capacity can reflect the volume of a person's brain. Brain volume is used to estimate a person's intelligence. Intelligence is a person's ability to learn and to understand something new. Intelligence is governed by the left cerebral cortex. Learning achievement is influenced by level of intelligence. The aim of this study was to prove that the correlationbetweenestimated brain volume and learning achievement.
Methods: This research was an observational analytic study with cross-sectional design conducted in Medical Faculty of Sebelas Maret University in October, 2015. Samples from this study were 4th year male students of medical faculty. Sixty nine samples were selected by simple random sampling method. Head height, width and length of the participants were measured to determine the brain volume while exams scores were used as learning achievement indicator. Data analysis was performed using Pearson correlation test.
Results:The mean of Estimated brain volume and learning achievement measurement were 1614.35, ± 105.08 cc and 63.9, ± 4.48 respectively. The majority of samples (85.5%) had an estimated brain volume more than 1500 cc while 14.5% of samples had an estimated brain volume less than 1500 cc. Most of the samples (89.9%) had satisfactory learning achievement while only 10.1% had a good learning achievement. Data analysis using Pearson correlation test showed p = 0.000 and r= 0.555.
Conclusion:There was a positive correlation between estimated brain volume and learning achievement on Medical student of Sebelas Maret. This means that the higher estimated volume of brain, the higher the learning achievement.
Keywords: estimated brain volume, learning achievement, medical student