The General Functioning Scale of the Family Assessment Device: does it work with Chinese adolescents?

The reliability and validity of the General Functioning (GF) Scale of the Chinese version of the McMaster Family Assessment Device (FAD) were examined in three studies. In Study 1, data based on 361 adolescents showed that the GF scale was temporally stable and internally consistent, and there was support for its concurrent and construct validities. In Study 2, data analyzed from a clinical group and a nonclinical group (N = 281 and 451, respectively) showed that the GF scores were able to discriminate these two groups. With data pertaining to 3649 secondary-school students, Study 3 gives support for the internal consistency, concurrent validity, and construct validity of the GF scale in different adolescent samples. These studies strongly suggest that the GF scale of the FAD possesses good psychometric properties in different Chinese adolescent samples.