Non-linear Growth Models in Mplus and SAS.

Non-linear Growth Models in Mplus and SAS.
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DOI:
10.1080/10705510903206055
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发表时间:
2009-10
期刊:
Structural equation modeling : a multidisciplinary journal
影响因子:
--
通讯作者:
Ram N
Ram N
中科院分区:
其他
文献类型:
--
作者:
Grimm KJ;Ram N

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非线性生长曲线或在时间上遵循特定非线性函数的生长曲线使研究人员能够用易于解释的参数来模拟复杂的发育模式。在本文中,我们描述了如何使用Mplus结构建模程序和SAS中的非线性混合效应建模程序NLMIXED来拟合各种S形曲线。使用纵向成绩数据收集的一部分,研究学前教育对学业成绩的影响,我们说明了程序拟合增长模型的逻辑,Gompertz和理查兹功能。简要说明有关的实际利益,局限性,并在拟合和估计这些模型面临的选择。
Non-linear growth curves or growth curves that follow a specified non-linear function in time enable researchers to model complex developmental patterns with parameters that are easily interpretable. In this paper we describe how a variety of sigmoid curves can be fit using the Mplus structural modeling program and the non-linear mixed-effects modeling procedure NLMIXED in SAS. Using longitudinal achievement data collected as part of a study examining the effects of preschool instruction on academic gain we illustrate the procedures for fitting growth models of logistic, Gompertz, and Richards functions. Brief notes regarding the practical benefits, limitations, and choices faced in the fitting and estimation of such models are included.
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影响因子: 1.6
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