Verdino M, Dingman S
Marist College, Poughkeepsie, NY 12601, USA.
Percept Mot Skills. 1998 Apr;86(2):476-8. doi: 10.2466/pms.1998.86.2.476.
This study investigated the relationship between a paper-and-pencil measure of laterality in handedness, the Edinburgh Handedness Inventory, and a test of manual dexterity, the Purdue Pegboard test. Individuals of extreme handedness based on the Edinburgh Handedness Inventory (laterality Quotients of +90 to +100 and -100 and +54; 50 each) were recruited to complete the Purdue Pegboard test of manual dexterity. Subjects in the sinistral group had significantly smaller mean discrepancy scores in performance between their hands [t80 = 5.12, p = .0001] and much greater variance in performance than dextral subjects (F1,98 = 2.85, p = .0001). These findings suggest that paper-and-pencil measures of lateral preference for handedness may not identify proficiency of subgroups within a sinistral group.
本研究调查了一种用于测量利手偏侧性的纸笔测试工具——爱丁堡利手量表，与一项手动灵巧性测试——普渡钉板测试之间的关系。基于爱丁堡利手量表（利手商数为+90至+100以及-100至-54；每组各50人）招募了极端利手个体，让他们完成普渡钉板手动灵巧性测试。左利手组受试者双手在测试表现上的平均差异得分显著更小[t80 = 5.12，p = .0001]，并且与右利手受试者相比，其测试表现的变异性更大（F1,98 = 2.85，p = .0001）。这些发现表明，用于测量利手偏侧性偏好的纸笔测试可能无法识别左利手组内不同亚组的熟练程度。
