This paper explores an evaluation method to evaluate the performance of participants in electric power emergency drill, expounds various important activities and summarizes general mode drill. introduces principle factor analysis principal component method, then uses this find common factors a series indexes, finally takes score as directly. comprehensive can reduce number indexes by looking fo...

objective: the aim of the present study was to evaluate the psychometric properties and factor structure of the matson evaluation of social skills with youngsters-ii (messy-ii) in a community population in iran. methods: the iranian version of the messy-ii was administered by interviewing care staff of all children and adolescents (n=355) with administratively defined intellectual disabilities ...