Using data from a 31-year panel study, we evaluate both the reliability of measurement of family attitudes, relationships, and self-concepts and the stability of these variables across time. We also compare the reliability of measurement and the stability of variables across time in these domains of family life with the reliability and stability of behavioral dimensions. Our results provide con...

this survey is a descriptive analytic study which was carried out to assess the effects of population control programs on national health development in islamic republic of iran (1986-1998). the objectives of the study are: 1)to determine the effects of family planning program on national health development ( 1986-1998). 2)  to indicate the relationship between family planning coverage and some...