Furey Rachel T, Bowden Stephen C, Jewsbury Paul A, Sudarshan Navaneetham J, Connolly Madeleine L
The University of Melbourne, Australia.
St. Vincent's Hospital Melbourne, Australia.
Assessment. 2024 Mar;31(2):363-376. doi: 10.1177/10731911231161779. Epub 2023 Apr 3.
To replicate a seven-factor model previously reported for the Delis-Kaplan Executive Function System (D-KEFS).
This study used the D-KEFS standardization sample including 1,750 non-clinical participants. Several seven-factor models previously reported for the D-KEFS were re-evaluated using confirmatory factor analysis (CFA). Previously published bi-factor models were also tested. These models were compared with a three-factor a priori model based on Cattell-Horn-Carroll (CHC) theory. Measurement invariance was examined across three age cohorts.
All previously reported models failed to converge when tested with CFA. None of the bi-factor models converged after large numbers of iterations, suggesting that bi-factor models are ill-suited to represent the D-KEFS scores as reported in the test manual. Although poor fit was initially observed for the three-factor CHC model, inspection of modification indices showed potential for improvement by including method effects via correlated residuals for scores derived from similar tests. The final CHC model showed good to excellent fit and strong metric measurement invariance across the three age cohorts with minor exceptions for a subset of Fluency parameters.
CHC theory extends to the D-KEFS, supporting findings from previous studies that executive functions can be integrated into CHC theory.
复制先前报道的针对德利斯-卡普兰执行功能系统（D-KEFS）的七因素模型。
本研究使用了包含1750名非临床参与者的D-KEFS标准化样本。使用验证性因素分析（CFA）对先前报道的几个D-KEFS七因素模型进行了重新评估。还测试了先前发表的双因素模型。将这些模型与基于卡特尔-霍恩-卡罗尔（CHC）理论的三因素先验模型进行比较。考察了三个年龄组的测量不变性。
所有先前报道的模型在进行CFA测试时均未收敛。经过大量迭代后，双因素模型均未收敛，这表明双因素模型不适用于表示测试手册中报告的D-KEFS分数。虽然最初观察到三因素CHC模型的拟合度较差，但对修正指数的检查表明，通过对来自相似测试的分数采用相关残差纳入方法效应，有改进的潜力。最终的CHC模型显示出良好到优秀的拟合度，并且在三个年龄组中具有很强的度量测量不变性，流畅性参数的一个子集有小的例外情况。
CHC理论适用于D-KEFS，支持先前研究的结果，即执行功能可以整合到CHC理论中。
