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Nested Design

Nested Design. Diah Indriani Biostatistics and Populations Department Public health faculty Airlangga university. Kapan Nested Design digunakan ?. Seringkali suatu penelitian nampaknya seperti factorial design, padahal jika diteliti lebih seksama bukan merupakan suatu perlakuan kombinasi

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Nested Design

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  1. Nested Design Diah Indriani Biostatistics and Populations Department Public health faculty Airlangga university

  2. Kapan Nested Design digunakan ? Seringkali suatu penelitian nampaknya seperti factorial design, padahal jika diteliti lebih seksama bukan merupakan suatu perlakuan kombinasi Terdapatkondisihierarki Misalnya : penelitian tentang tingkathigienitasperalatanmakan di pedagang kaki lima. Terdapat 3 pedagang kaki lima yang ditelitidenganmasing-masingdiambilsampelpiringdangelas. PadasetiapalatmakanditelitijumlahbakteriE.Coli

  3. Kapan Nested Design digunakan ? Apakah penelitian tersebut factorial 2x2 ? P. Kaki Lima Warung B Warung C Warung A Piring Gelas Piring Gelas Gelas Piring BUKAN

  4. Kapan Nested Design digunakan ? Sebuahperusahaanpupukmempunyaibeberaparujukansuplieruntukpemesanan stock bahanbaku proses produksinya. Terdapat 3 suplier yang menjadirujukanpemesanan 2 jenisbahanbaku.

  5. Kapan Nested Design digunakan ? Apakah penelitian tersebut factorial 2x2 ? Suplier Suplier B Suplier C Suplier A Barang 1 Barang 2 Barang 1 Barang 2 Barang 2 Barang 1 BUKAN

  6. Skema Data Untuk Nested Design

  7. Tabel ANOVA Nested Design

  8. Contoh Kasus Suatu penelitian mempelajari tentang kadar kalsium dalam sayuran. Terdapat 3 jenis sayuran yaitu kangkung, bayam, dan daun singkong. Setiap tumbuhan diambil 8 lembar daun. Daun Tumbuhan Kangkung Tumbuhan Bayam Tumbuhan S ingkong Daun Daun ... Daun Daun Daun ... Daun Daun Daun ... Daun

  9. Program Nested Dalam SAS DATA TURNIP; DO PLANT=1 TO 4; DO LEAF=1 TO 3; DO SAMPLE=1 TO 2; INPUT CALCIUM @@; OUTPUT; END; END; END; CARDS; 3.28 3.09 3.52 3.48 2.88 2.80 2.46 2.44 1.87 1.92 2.19 2.19 2.77 2.66 3.74 3.44 2.55 2.55 3.78 3.87 4.07 4.12 3.31 3.31 ; PROC NESTED; CLASSES PLANT LEAF; VAR CALCIUM;

  10. Hasil Analisis Dengan SAS CALCIUM CONCEN. IN TURNIP LEAVES -- NESTED RANDOM MODEL 4 SNEDECOR AND COCHRAN, STATISTICAL METHODS, 1967, P. 286 04:31 Monday, June 15, 1998 Coefficients of Expected Mean Squares Source PLANT LEAF ERROR PLANT 6 2 1 LEAF 0 2 1 ERROR 0 0 1 CALCIUM CONCEN. IN TURNIP LEAVES -- NESTED RANDOM MODEL 5 SNEDECOR AND COCHRAN, STATISTICAL METHODS, 1967, P. 286 04:31 Monday, June 15, 1998 Nested Random Effects Analysis of Variance for Variable CALCIUM Degrees Variance of Sum of Error Source Freedom Squares F Value Pr > F Term TOTAL 23 10.270396 PLANT 3 7.560346 7.665 0.0097 LEAF LEAF(PLANT) 8 2.630200 49.409 0.0000 ERROR ERROR 12 0.079850 Variance Variance Percent Source Mean Square Component of Total TOTAL 0.446539 0.532938 100.0000 PLANT 2.520115 0.365223 68.5302 LEAF 0.328775 0.161060 30.2212 ERROR 0.006654 0.006654 1.2486 Mean 3.01208333 Standard error of mean 0.32404445

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