中文摘要：

以2695名小学三、四年级的儿童（平均年龄10.06±0.54岁）作为被试,使用同伴评定、同伴提名和教师评定对这些儿童的三种攻击行为（身体、言语、关系）进行了测评,采用相关分析与结构方程模型对儿童攻击行为的多质多法数据进行统计处理。多质多法模型的分析结果显示,三种方法对儿童攻击行为的测评具有一定的会聚效度,但区分效度较低;同伴测评儿童攻击行为的有效性优于教师测评,其中同伴评定的有效性好于同伴提名。

英文摘要：

Literature indicates that there existed only low agreement among different informants in the assessment of children＇s aggressive behavior（Karver,2006;Ladd Kochenderfer-Ladd,2002）,which reflects the fact that each informant offers his or her unique perspective on the target children＇s behavior（Achenbach,1995;Loeber et al.,2000）.With the awareness of the disadvantages inherent in the assessment using single informant,MTMM（multitrait-multimethod） design is becoming increasingly popular in research on human development in recent years.The present study investigated the convergent and discriminant validities of MTMM data on children＇s aggression during middle childhood and the extent to which the validities of assessment varied between peers and teachers as informants.The participants were 2695 children in their middle childhood（mean age = 10.06 ± 0.54 years） with approximately equal number of boys（51.87%） and girls（48.13%） and the children＇s head teachers（n = 50）.These students and teachers were from 50 classrooms in 14 schools in Jinan,capital city of Shandong Province of China.The MTMM data on children＇s three types of aggression（i.e.physical,verbal and relational） was obtained from two types of informants（peer and teacher） and via three types of methods of data collection（i.e.peer nomination,peer rating and teacher rating）.For peer nomination,the Children＇s Social Behavior Scale（Crick,1997） was used and the children were asked to nominate up to three children who best fitted thedescriptions of items of physical and relational aggression from within their class.Information about children＇s physical,verbal,and relational aggressions was also obtained via peer rating,in which children rated their peers on a 12-item Aggressive Behavior Questionnaire.In addition,teacher rating was conducted in which the head teacher of each of the participating classroom rated all the children in his/her class on the three types of aggression using a modified version of the agg