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Anna Islamiyati

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Open access Sep 2026

Development of a mixed-effects longitudinal spline regression method for growth data analysis

Conventional parametric regression in longitudinal studies frequently violates the homoscedasticity and linearity assumptions. Moreover, in practice, it is common to observe data patterns that are not defined by any specific parametric functional form. As a result, the parametric longitudinal regression model risks a b...

Isra Leyla Bangsawang, Anna Islamiyati, E. T. Herdiani · 0 citations

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