BAB 3. METODE PENELITIAN
3.1 Jenis penelitian
Jenis penelitian adalah eksperimental laboratoris Notoatmodjo, 2005: 156
3.2 Rancangan penelitian
Rancangan penelitian yang digunakan adalah Post Only Control Design.
3.3 Tempat dan Waktu penelitian
3.3.1 Tempat penelitian Penelitian ini dilakukan di Laboratorium Biologi Fakultas Farmasi dan
Laboratorium Mikrobiologi Fakultas Kedokteran Gigi Universitas Jember. 3.3.2 Waktu penelitian
Penelitian dilaksanakan pada 21 November- 28 November 2011.
3.4 Idetifikasi Variabel Penelitian
3.4.1 Variabel bebas a Ekstrak daun sirih merah Piper crocatum konsentrasi 100, 50 ,
25, 12,5. b NaOCl 2,5
3.4.2 Variabel terikat Daya anti bakteri ekstrak daun sirih merah Piper crocatum terhadap
pertumbuhan Streptococcus viridans. 3.4.3 Variabel terkendali
a. Kriteria daun sirih yang digunakan b. Metode dan cara kerja
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3.5 Definisi Operasional Penelitian