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首页> 外文期刊>Psychological assessment >Development and Public Release of the Penn Reading Assessment Computerized Adaptive Test (PRA-CAT) for Premorbid IQ
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Development and Public Release of the Penn Reading Assessment Computerized Adaptive Test (PRA-CAT) for Premorbid IQ

机译：Penn阅读评估计算机化自适应测试（PRA-CAT）的开发和公开释放用于预血管智商

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An important component of neuropsychological testing is assessment of premorbid intelligence to estimate a patient's ability independent of neurological impairment. A common test of premorbid IQ-namely, the Reading section of the Wide Range Achievement Test (WRAT)-has been shown to have high measurement error in the high ability range, is unnecessarily long (55 items), and is proprietary. We describe the development of an alternative, nonproprietary, computerized adaptive test for premorbid IQ, the Penn Reading Assessment (PRA-CAT). PRA-CAT items were calibrated using a 1-parameter item response theory model in a large community sample (N = 9.498), Ages 8 to 21, and the resulting parameters were used to simulate computerized adaptive testing sessions. Simulations demonstrated that the PRA-CAT achieves low measurement error (0.25; equivalent to Cronbach's alpha = .94) and acceptable measurement error (0.40; Cronbach's alpha = .84) after only 18 and 6 items, respectively (on average). Correlation of WRAT and PRA-CAT scores with numerous clinical, cognitive, demographic, and neuroimaging criteria suggests that validity of PRA-CAT score interpretation is comparable (and sometimes superior) with the WRAT. The fully functioning PRA-CAT for public use (including item parameter estimates reported here) has been built using the open-source program Concerto, and can be installed by anyone on a local computer or on the "cloud." Given the length and proprietary nature of the WRAT, the PRA-CAT shows promise as a potential alternative (and with minimal or no cost). Further validation in the context of neurological injury is needed.
机译：神经心理学检测的一个重要组成部分是对预血智力的评估，以估计患者独立于神经损伤的能力。常见的预血压IQ - 即，广泛梯度测试（WraT）-HAS的读数部分已被证明在高能力范围内具有高测量误差，是不必要的长（55件），并且是专有的。我们描述了开发用于前置IQ，宾夕法尼亚州读取评估（PRA-CAT）的替代，非专业，计算机化的适应性测试。使用1个参数项目响应理论模型在大型社区样本（n = 9.498）中校准PRA-CAT项目，使用8至21岁，由此产生的参数模拟计算机化的自适应测试会话。模拟表明，PRA-CAT达到了低测量误差（0.25;相当于Cronbach的alpha = .94），并且分别在18和6项（平均）之后可接受的测量误差（0.40; cronbach的alpha = .84）。 Wraat和Pra-Cat分数与许多临床，认知，人口统计和神经影像标准的相关性表明，PRA-CAT评分解释的有效性与WraT相当（有时是优越的）。使用开源程序协奏曲建立了用于公共使用的全功能PRA-CAT（包括此处报告的项目参数估计数），可以由本地计算机上的任何人或在“云”上安装。鉴于WraT的长度和专有性质，PRA-CAT将承诺作为潜在的替代方案（并且最小或没有成本）。需要在神经损伤的背景下进行进一步验证。

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