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Wait wait, don't tell me: Handedness questionnaires do not predict hand preference for grasping.
Laterality ( IF 2.167 ) Pub Date : 2018-07-05 , DOI: 10.1080/1357650x.2018.1494184
Jason W Flindall 1 , Claudia L R Gonzalez 2
Affiliation  

Handedness questionnaires are a common screening tool in psychology and neuroscience, used whenever a participant's performance on a given task may conceivably be affected by their laterality. Two widely-used examples of such questionnaires are the Edinburgh Handedness Inventory and the Waterloo Handedness Questionnaire. Both instruments ask respondents to report their hand preference for performing a variety of common tasks (e.g., throwing a ball, or opening a drawer). Here we combined questions from the two instruments (E-WHQ; 22 questions total) and asked participants to report their preferred hand for each via a five-point scale. The purpose of this study was to determine whether responses on the E-WHQ are accurate, reliable, and/or predictive of hand-preference for a simple grasp-to-construct task. Regarding accuracy, handedness scores were 5% lower when participants used a scrambled response key versus a consistent one. Test-retest reliability of the questionnaire was weak, with any given inventory item eliciting a different response from 34% of respondents upon retesting. Neither was the E-WHQ predictively useful—although both left- and right-handers preferred their dominant hands, E-WHQ score did not correlate with overall percentage of dominant-hand grasps in either group. We conclude that the E-WHQ is unsuited for predicting hand preference for grasping.



中文翻译:

等一下,不要告诉我:惯用度调查表不能预测要抓握的惯性。

惯用度调查表是心理学和神经科学中的一种常见筛选工具,每当参与者在给定任务上的表现可能受其偏颇影响时,都可以使用。此类问卷的两个广泛使用的例子是爱丁堡习惯问题调查表和滑铁卢习惯问题调查表。两种工具都要求受访者报告他们对执行各种常见任务(例如扔球或打开抽屉)的偏好。在这里,我们结合了两种工具的问题(E-WHQ;总共22个问题),并要求参与者通过五点量表来报告每个人的偏爱手。这项研究的目的是确定对E-WHQ的响应是否准确,可靠和/或对于简单的抓握到构造任务的手工偏好预测。关于准确性,与一致的参与者相比,参与者使用加扰的响应密钥时的惯常情况得分低5%。问卷的重测信度很弱,任何给定的库存项目在重测时都会引起与34%的受访者不同的回答。E-WHQ都不具有预测性的作用-尽管左撇子和右撇子都偏爱他们的优势手,但是E-WHQ得分与两组中的优势手握持的总百分比均不相关。我们得出结论,E-WHQ不适合预测手的抓握偏好。E-WHQ都不具有预测性的作用-尽管左撇子和右撇子都偏爱他们的优势手,但是E-WHQ得分与两组中的优势手握持的总百分比均不相关。我们得出结论,E-WHQ不适合预测手的抓握偏好。E-WHQ都不具有预测性的作用-尽管左撇子和右撇子都偏爱他们的优势手,但是E-WHQ得分与两组中的优势手握持的总百分比均不相关。我们得出结论,E-WHQ不适合预测手的抓握偏好。

更新日期:2018-07-05
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