The dimensionality of the Edinburgh Handedness Inventory: An analysis with models of the item response theory

被引:74
作者
Buesch, Dirk [1 ]
Hagemann, Norbert [2 ]
Bender, Nils [2 ]
机构
[1] Inst Appl Training Sci, D-04109 Leipzig, Germany
[2] Univ Munster, D-4400 Munster, Germany
来源
LATERALITY | 2010年 / 15卷 / 06期
关键词
Handedness questionnaires; Construct validity; Item homogeneity; Response categories; Mixed-Rasch model; HAND PREFERENCE QUESTIONNAIRE; CLASSIFICATION; COORDINATION; RELIABILITY; PERFORMANCE; VALIDATION; EXPERIENCE; TRAIT; TASKS; SKILL;
D O I
10.1080/13576500903081806
中图分类号
B84 [心理学];
学科分类号
010107 [宗教学];
摘要
Handedness is frequently measured with sum scores or quotients taken from laterality questionnaires like the Edinburgh Handedness Inventory (EHI). In classical test theory such data cannot be used to confirm either the unidimensionality (i.e., quantitative differentiation with the poles left-handed and right-handed) or multidimensionality (i.e., typological differentiation between left-, right-, and mixed-handers) of this personal characteristic. This study uses item response theory models to test the construct validity of the EHI on an item level in order to gather empirical support for the differentiation of handedness as well as the appropriateness of the items and the response format. The EHI was given to 540 participants (303 male and 237 female) aged 17-37 years. Results of mixed-Rasch analyses revealed that the best model was a two-class solution; that is, left- and right-handers (types) with quantitative differences between persons. Hence, unlike earlier model tests, this rejects both the unidimensionality of the handedness construct and the need to consider so-called mixed-handers. It is proposed that mixed-Rasch analyses should be applied more frequently to test the construct validity of other as well as more extensive handedness questionnaires.
引用
收藏
页码:610 / 628
页数:19
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