Psychometric Characteristics of the Culture Fair Intelligence Test Scale 2

Novina Sabila Zahra, W. Widyastuti, Ahmad Ridfah
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引用次数: 3

Abstract

This study aims to investigate the psychometric characteristics of the CFIT-scale-2, including investigation of difficulty level, discrimination, distractor effectiveness, DIF (Differential item functioning), IRT (Item Response Theory) 2PL model, validity, and reliability. Respondents were 507 students with 245 (48%) females and 262 (52%) males, with ages ranged from 8-13 years (M= 10.88; SD = 1.35). The classical test theory (CTT) analysis showed that the item difficulty level on the CFIT-scale-2 had varying item difficulty levels, from easy to difficult. However, the test arrangement was not structured according to the suggested difficulty level from easy to medium to difficult. The discrimination of items was poor because 28 items were not included in the very good category (p > .40). In addition, 47 (25%) of the 184 distractors are ineffective. CFIT-scale-2 did not contain DIF (Adj.p > .05), and IRT analysis showed that the CFIT-scale-2 was not structured according to the difficulty pattern from easy, medium, and difficult. The CFIT-scale-2 based on IRT analysis contained 44 items or 96% with good discrimination. The results of a construct validity test using the CFA technique showed a good fit model (p < .001; RMSEA < .08; SRMR < .08), which was acceptable and supported the fit between the theoretical and empirical model. The reliability coefficient value of Cronbach's alpha was 0.88 (α > .70), indicating that the CFIT-scale-2 had good reliability, but the construct reliability was below an acceptable value (CR < .69). According to this study, the psychometric characteristics of the CFIT-scale-2 should be revised and reevaluated.
文化公平智力测验量表的心理测量特征
本研究旨在探讨cfit -2量表的心理测量特征,包括难度、辨析、分心物有效性、差异项目功能(DIF)、项目反应理论(IRT) 2PL模型、效度和信度的调查。调查对象为507名学生,其中女生245人(48%),男生262人(52%),年龄8 ~ 13岁(M= 10.88;Sd = 1.35)。经典测试理论(CTT)分析表明,CFIT-scale-2的项目难度水平具有从简单到困难的不同难度水平。然而,考试安排并没有按照建议的难度等级从简单到中等再到困难来安排。项目的辨别性较差,因为有28个项目不包括在非常好的类别中(p >.40)。此外,184个干扰物中有47个(25%)无效。CFIT-scale-2不含DIF (Adj.p . >.05),且IRT分析显示,CFIT-scale-2并非按照易、中、难的难度模式构建。基于IRT分析的CFIT-scale-2包含44个条目,占96%,判别性良好。使用CFA技术进行结构效度检验的结果显示,拟合模型良好(p < .001;Rmsea < .08;SRMR < .08),可以接受,支持理论模型与实证模型的拟合。信度系数Cronbach's alpha值为0.88 (α >.70),表明CFIT-scale-2具有较好的信度,但结构信度低于可接受值(CR < 0.69)。本研究建议对cfit -2量表的心理测量特征进行修订和重新评估。
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来源期刊
CiteScore
0.50
自引率
0.00%
发文量
8
审稿时长
16 weeks
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