大学生网络利他动机的结构与测量

The Construction and Measurement of College Students'Internet Altruistic Motivation

为探讨大学生网络利他动机的结构并编制大学生网络利他动机问卷。首先对大学生进行开放式问卷的预调查,形成47个项目的问卷初稿,然后进行项目分析和探索性因素分析,并用验证性因素分析对问卷结构进行检验。结果发现,经探索性因素分析确定问卷包含24个项目,4个因子,解释了总变异的61.31%;总问卷的α系数、分半信度和重测信度分别为0.93、0.82和0.81,各维度的α系数在0.86~0.88之间,分半信度在0.81~0.86之间,重测信度(间隔4周)在0.67~0.80之间;验证性因素分析的结果为:x^2/df=3.37,RMSEA=0.07,NFI=0.94,NNFI=0.95,CFI=0.96。大学生网络利他动机包含四个维度,编制的大学生网络利他动机问卷具有较好的信度和效度,可以作为测量大学生网络利他动机的工具。

Objective:To explore the construction of internet altruistic motivation and develop a questionnaire of college students'internet altruistic motivation.Methods:College students were investigated by an open questionnaire in advance,and 47 items were compiled in the first-questionnaire.Then item analysis,exploratory and confirmatory factor analysis were applied to the data.Results:The exploratory factor analysis indicated that the questionnaire consisted of 24 items,4 factors explaining 54.647%of the total variance.The Cronbach's alpha coefficient,split-half coefficient and test-retest reliability for the questionnaire were 0.93,0.82 and 0.81,the Cronbach's alpha coefficient for the dimensions ranged from 0.86 to 0.88,split-half coefficient from 0.81 to 0.86,test-retest reliability from 0.67 to 0.80.The confirmatory factor analysis showed as follows:x^2/df=3.37,RMSEA=0.07,NFI=0.94,NNFI=0.95,CFI=0.96,.Conclusion:There are four dimensions of college students'internet altruistic motivation.The questionnaire of college students'internet altruistic motivation have satisfying reliabilities and validities,which can be used to measure college students'internet altruistic motivation.