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    Assessing factors influencing adolescent sexual debut in Nigeria: a multi-cluster survival analysis approach by Fabio Mathias Correa, Peter Enesi Omaku, Joseph Odunayo Braimah, Joseph Odunayo Braimah

    Published 2025-01-01
    “…We analyse data from the 2018 Nigerian NDHS survey and compare our model with existing models: a model without the cluster frailty effect, a model that ignores the Besag ICAR and includes the IID, and a model that ignores the IID and includes only the Besag ICAR.ResultsOur approach, which combines independent and spatial random effects, outperforms others based on statistical criteria (Deviation Information Criterion and the Widely Applicable Information Criterion).DiscussionAs shown in this study, the proposed model effectively captures the complexity of age at first sex. …”
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    Application of Multilevel Models to Morphometric Data. Part 2. Correlations by O. Tsybrovskyy, A. Berghold

    Published 2003-01-01
    “…A comparison with two usual, “single‐level” statistics shows that MMM represent the only way to obtain correct cell‐level correlation coefficients. …”
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    The Fréchet Derivative of an Analytic Function of a Bounded Operator with Some Applications by D. S. Gilliam, T. Hohage, X. Ji, F. Ruymgaart

    Published 2009-01-01
    “…Some applied problems from statistics and numerical analysis are included as a motivation for this study. …”
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