Objective:To investigate the predictive role of shyness on internalizing problem,and the moderating effect of teacher-child relationship between these two variables in children.Methods:A 9-months longitudinal survey was conducted with a sample of 285 junior class children.Mothers evaluated children's shyness level and internalizing problems in the first survey,while teachers evaluated the quality of teacher-child relationship and children's internalizing problems in the second survey.Results:The early inter...