中文版虚拟现实环境临场感量表的应用与修订

The Reliability and Validity of Chinese Version of Igroup Presence Questionnaire

目的对临场感量表中文版进行应用修订,并检验其信效度。方法选取7类共12个虚拟现实场景对660名被试进行施测完成中文版量表的验证与修订。结果(1)高低分组结果表明,除项目14(sp3)之外,所有项目均具备较好的鉴别力;(2)所有项目与总分的相关系数均在0.3以上,项目与总分的一致性良好;(3)探索性因素分析表明,中文版量表有3个因子,解释总方差的51.10%,因子与原有理论假设一致,问卷的结构效度良好;(4)内部一致性信度分析表明,除空间临场感维度外,总量表与其余两个维度的一致性系数均在0.7以上,信度良好。结论中文版临场感问卷具有较好的信度和效度,适合作为虚拟现实环境中用户体验的评估工具。

Objective To revise the Chinese version of Igroup Presence Questionnaire(IPQ),and text its reliability and validity.Methods By convenient sampling,660 students in Beijing,Hengshui and Zhuozhou were chosen as subjects to completed the Chinese version of IPQ,and date used in independent-samples t text,items analysis,reliability and validity tests conducted.Results(1)Independent-samples t test showing that each item in high score group and low score group all were significantly different,except for item14(sp3);(2)Item analysis indicated that correlation coefficients between item and total score were all above 0.3;(3)The exploratory factor analysis found a 3 components structure in Chinese version of IPQ,which consistent with the original scale.The variance interpretation rate was 51.10%;(4)The Cronbach'sαcoefficient for the total scale,Realness dimension and Involvement dimension were above 0.7 except for Spatial Presence dimension,showing that the scale had a good reliability.Conclusion The Chinese version of IPQ has good validity and reliability,and can be used to assess the presence in virtual reality environments.