数学效用测试中李克特量表的变化

F. Abal, S. Auné, H. Attorresi
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引用次数: 2

摘要

这项工作的目的是比较在效度和信度研究中获得的结果,当李克特格式的项目变化。该测试测量了人们对数学在职业发展和未来职业发展中的重要性的看法。939名参与调查的心理学专业学生(81%为女生)分别用3、5、6个类别来回答问题。每个格式的个人暴露顺序的影响被控制,并包括其他测试,以减少答案记忆。具有更多类别的李克特量表在特征的极端水平上提高了测试信度,但以牺牲内部结构效度证据为代价(项目反应理论的验证性因子分析和部分信用模型)。相对效率函数表明,在5分制和6分制尺度下,性状各层次的信息相似。李克特类别的数量并没有实质性地影响有用性和其他变量之间的关系。
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Variación de la escala Likert en el test de utilidad de la matemática
The aim of this work was to compare the results obtained in validity and reliability studies of a mathematics usefulness scale when the Likert format of the items varies. The test measured beliefs about the importance attributed to mathematics for career progress and future professional development. The 939 Psychology students (81% female) who participated responded to the items using 3, 5 and 6 categories. The effect of the order of exposure of individuals to each format was controlled and other tests were also included to reduce answer memorization. Likert scales with more categories increased test reliability at the extreme levels of the trait, but at the expense of compromising the internal structure validity evidences (Confirmatory Factor Analysis and Partial Credit Model of the Item Response Theory). The relative efficiency function revealed that similar information is obtained for all levels of the trait when using 5 or 6-point scales. The number of Likert categories did not substantially affect the relationship between usefulness and other variables.
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