Judul: Parameter Estimation Of Correlated Outcome And Covariates Measured With Error In Logistic Regression
Abstrak: In epidemiological studies, it is common to have binary data as the response variable. Hence, the common model applied to represent the relationship between the binary outcome and risk factors is logistic regression. Problems that commonly occur in binary data are intra-class correlation in the outcome variable and measurement error or misclassification in the covariates/risk factors. An alternative statistical procedures, William's procedure and Generalized Estimating Equation for correlated outcome and direct adjustment for measurement error, are used to handle these problems. The application of these methods is implemented to the Children Nutrient Status Data. The data is obtained from the study conducted in June 2000 - October 2000, involving 402 children under five years old in three locations in Central Java. In the analysis of intra-enumerator data, there is an indication of the presence of intra-correlation between data co llected and enumerator.
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Judul: Statistical Analysis for Non-Normal and Correlated Outcome in Panel Data
Abstrak: There are many cases that cannot fulfill some assumptions in statistical analysis, such as normality and independence. In many practical problems, the normality as well independent assumption is not reasonable. For example, data that repeated over time tend to be correlated. If analysis ignores the non independent outcome the Standard Error (SE) on the parameter estimates tends to be too small. Generalized Linear Model (GLM), Generalized Estimating Equation (GEE), and Generalized Linear Mixed Model (GLMM) can be used for nonnormal data using the link functions. GEE includes working correlation matrix to accommodate the correlation in the data. GLMM may overcome the repeated observation and allows individual have different baseline/intercept. The study is aim at comparing result based on those approaches. The data that are used in this study are from BPS and the outcome that are used is poverty proportion. Based on the study shows that GEE approach is better than GLM for marginal model, and GLMM approach is better than GEE with dummy variable.
Keyword: Bogor Agricultural University (IPB), non-normal, GLMM, GLM, GEE, correlation outcome

Judul: Budidaya bunga krisan potong (dendranthema grandiflora tzvelev) di PT. Alam Indah Bunga Nusantara, Cipanas Cianjur Jawa Barat
Abstrak: Kegiatan magang ini dilakukan untuk memperluas wawasan dan meningkatkan pengetahuan mengenai budidaya bunga krisan potong sampai pada egiatan pemasarannya. Pelaksanaan magang dilakukan di PT. Alam Indah Bunga Nusantara (AIBN), Cipanas, kabupaten Cianjur, Jawa Barat. Magang ini ilaksanakan selama empat bulan dimulai pada tanggal 5 Februari 2003 sampai 5 uni 2003. Metode yang di gunakan adalah dengan mengikuti seluruh rangkaian egiatan yang dilaksanakan di perusahaan mulai dari teknik budidaya, Denanganan pasca panen, sampai dengan pemasarannya. Pengumpulan data dan nformasi dilakukan dengan metode langsung dan metode tidak langsung. Data primer diperoleh melalui pengamatan dan pencatatan langsung di perusahaan erkait, sedangkan data sekunder diperoleh dari studi pustaka. Hasil kegiatan magang ini menujukkan bahwa PT. Alam Indah Bunga Nusantara merupakan suatu perusahaan agribisnis dengan krisan potong sebagai komoditas utamanya. Varietas bunga krisan yang ditanam adalah tipe spray dan tipe standar. Tipe spray terdiri dari town talk, white regent,royal regent, stroika, uma dan yellow puma, sedangkan untuk tipe standar terdiri dari yellow fiji, white fiji, dark fiji, shena dan revert. Umur panen tanaman krisan berkisar antara 12 minggu sampai dengan 14 minggu. Kegiatan budidaya tanaman krisan dilakukan di rumah plastik yang dilengkapi dengan sarana pendukung lainnya seperti exhaust fan, drip irrigation, overhead irrigation dan sarana penyinaran. Kegiatan budidaya dimulai dari tempat pembibitan yaitu pengambilan stek pucuk dari mother stock plant (tanaman induk), kemudian ke nursery yaitu tempat penanaman stek yang akan menghasilkan bibit yang berkualitas yang akan ditanam di lahan untuk produksi. Kegiatan budidaya yang terakhir yaitu kegiatan di lahan produksi yang akan
Keyword: Bunga krisan potong, Dendranthema grandiflora tzvelev