RESUMEN
Objective To develop a scale to measure three representative real relationships of undergraduates (parent-child relationship,collegemate relationship and teacher-student relationship) and test its validity and reliability(multi-interpersonal dynamics questionnaire for undergraduates,MIDQ-U).Methods A total of 1 310 students were conveniently sampled as respondents to analyze validity and reliability indexes.Result Three relationships share four factors for interpersonal dynamic characteristics:closeness,indifference,independence and submissiveness.The revised MIDQ-U composed of 26 items to separately measure characteristics of three relationships both separately and together.The factor loading of items in parent-child relationship scale were 0.41-0.73 and 50.71％ of the variances could be explained,while eollegemate relationship 0.41-0.72 and 51.81％ explained,teacher-student relationship 0.42-0.76 and 49.58％ explained.The model in 4 factors(x2/df =2.59,CFI =0.85) fitted the data with well construct validity.The Cronbach α coefficients were 0.847 in parent-child relationship scale,0.865 in collegemate relationship scale and 0.836 in teacher-student relationship scale.The test-retest reliabilities were 0.867,0.786 and 0.746.Conclusions The MIDQ-U has satisfactory validity aud reliability.It can be used to measure one of the three relationships separately,and also as an evaluation tool to compare and correlate multiple interpersonal dynamics.