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Spline Models Which Use In Longitudinal Data Analysis

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  • Seda BAÄžDATLI KALKAN

    (İstanbul Ticaret Üniversitesi, Uluslararası Ticaret Bölümü)

Abstract

Longitudinal data is defined as data obtained by a repeated measurement of variables pertaining to the same units over time. The analysis of longitudinal data cannot be achieved through classical regression models because of the independence and multicollinearity assumptions. For this reason, specific regression models have been developed for such data. Classical parametric models are based on the rationale that the relation between the dependent variable and the independent variable(s) is linear or the relation is expressed through known parametric functions. In such a case, it is not possible to reveal the actual structure of the relation, which will prevent the researcher from achieving reliable and rational outcomes particularly in longitudinal datasets. Non-parametric regression model is utilized in cases where the relation between the dependent variable and the independent variable(s) is more complicated in longitudinal data. In this study spline models in nonparametric regression models which use in longitudinal data are investigated theoretically.

Suggested Citation

  • Seda BAÄžDATLI KALKAN, 2017. "Spline Models Which Use In Longitudinal Data Analysis," Eurasian Eononometrics, Statistics and Emprical Economics Journal, Eurasian Academy Of Sciences, vol. 6(6), pages 18-35, February.
    • Handle: RePEc:eas:econst:v:6:y:2017:i:6:p:18-35
    DOI: 10.17740/eas.stat.2017-V6-02
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