计算机视听觉反应时测定及评价

Determination of Computer-based Visual and Auditory Reaction Times

目的 了解自编计算机反应时测定系统的信度和效度 ,以便推广应用。方法 采用自身对照的方法对 55名研究对象分别用计算机和传统方法进行反应时测试。结果 2种仪器反应时测试结果的相关分析表明 ,除听觉反应时中的最快、最慢反应时和视觉简单反应时中的最慢反应时外 ,其余各项反应时指标均有显著性相关 (P <0 .0 5或P <0 .0 1 ) ;计算机各项反应时指标间具有高度内相关性 (P <0 .0 5或P <0 .0 1 ) ;对同一样本采用计算机进行 2次测试 (间隔 1 0d) ,结果经t检验有 7项指标 (共 9项 )差异无显著性 (P >0 .0 5)。结论 计算机反应时测试系统具有方法可靠、结果稳定、重复性好等特点 。

Objective To evaluate reliability and validity of a self designed computer program for the measurement of reaction time, and to provide a basis for its application. Methods With self control method, computer based reaction time and non computer based reaction times were measured among 55 college students.Results The correlation analysis between two methods indicated that correlations were significant in reaction time indexes ( P <0.05 or P <0.01) expect the fasted and slowest reaction time of auditory and the slowest reaction time of vision. There were significant inner correlations between each computer based reaction indexes ( P <0.05 or P <0.01). Two tests were conducted on the same object at interval of 10 days and t test showed no significant differences between two tests in 7 of 9 indexes (p>0.05). Conclusion The computer program for the measurement of reaction time have accurate, valid and reliable results, thus it is a practical method.