Regresi Nonparametrik Spline Truncated untuk Memodelkan Persentase Unmet Need di Kabupaten Gresik
Submission Date: 2018-08-01 17:04:12
Accepted Date: 2018-12-17 00:00:00
Abstract
Kabupaten Gresik merupakan wilayah yang mengalami penurunan persentase unmet need sehingga pada tahun 2017 menjadi urutan terendah kedua di Provinsi Jawa Timur yaitu sebesar 15,6%. Faktor-faktor yang mempengaruhi seperti petugas penyuluh informasi, tempat pelayanan KB, persentase keluarga miskin dan persentase pendidikan terakhir lebih dari SMA yang ditamatakan kepala keluarga diduga cukup berpengaruh dalam capaian Kabupaten Gresik dalam menangani kejadian unmet need. Metode yang sesuai digunakan dalam penelitian yaitu analisis regresi nonparametrik Spline Truncated karena data tidak membentuk sebuah pola tertentu serta menggunakan titik knot optimum berdasarkan nilai Generalized Cross Validation (GCV) yang minimum. Dalam penelitian ini, karakteristik kecamatan dengan persentase unmet need di Kabupaten Gresik sangat tinggi dan tidak memenuhi SPM. Model regresi nonparametrik spline truncated terbaik dengan menggunakan kombinasi titik knot yaitu satu titik knot pada variabel cakupan PKB/PLKB (x1), satu titik knot pada variabel cakupan tempat pelayanan KB (x2), dua titik knot pada variabel persentase keluarga miskin (x3), serta dua titik knot pada variabel persentase pendidikan terakhir lebih dari SMA yang ditamatkan oleh KK (x4). Nilai koefisien determinasi yang dihasilkan dari model ini adalah sebesar 88,09%.
Keywords
GCV; Unmet Need; Regresi Nonparametrik; Spline Truncated; Titik Knot
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