Background
: FACES III, the wide world evaluating tool of the family function, was developed by Dr.Olsan. In Korea validity and reliability of FACES III have been proven by the score from father-mother-child triad Because, to date, many studies using the FACES III in korea have been applied to the only one of family members, and have been conducted without proving their validity and reliability, Jong Myon Bae, M.D. et al have been tested validity and reliability of FACES III when applied to the one of family members. But the validity if FACES III applied to the one of family members seemed not to be proven.
If validity and reliability of FACES III will be proven by score from two of family members(patient and care-giver), this method will be used in the practice of the family Medicine. Therefore, it is required to test validity and reliability of FACES III when applied to two of family members.

Methods : This cross-setional study was based on FACES III(this questionnare were translated by Dr. Lim, et al), self-report inventory response of 63 families, 126 subjects, who selected in admitted patients, out-patients, and their care-gives of the department of the Family Medicine, Internal Medicine, and Orthopedics, Song Nam Central Hospital. And demographic distributions were questioned.

Results : Cronbach's alpha coefficients for internal consistency of reliability were 0.60 for adaptabi-lity, 0.79 for cohesion and 0.62 for total items. The Pearson's corelation coefficient between cohesion and adaptability was 0.484(P<0.01), which did not support the construct validity. However, Corela-tion between total score and the sub-categorical items showed content-related validity except item No.20 of role concept. Correlation coefficiets between family members were 0.535 for adaptability and 0.448 for cohesion. It is statistically significant.

Conclusion : The validity of FACES III applied to two of family members seemed not to be prove., Therefore, it is required that the type of family function should be probably assessed by many numbers of family member.