the present study was conducted to computer social skills of male students with partially hearing impairment (phi ) in integrated versus nonintegrated school settings in tehran, iran. in this ex post facto research, 60 phi students participated(30 students in integrated schools and 30 in nonintegrated schools). in this study two different kinds of educational settings were considered as an inde...

this study employs a gmdh neural network model, which has high capability in recognition of complicated non-linear trends especially with small samples, for modeling and predicting iranian gdp growth. first a fundamental model containing 7 independent variables together with dependent variable is designed and then by using deductive process and omission of one variable at a time, a total of 18 ...

A lagged dependent variable in an OLS regression is often used as a means of capturing dynamic effects in political processes and as a method for ridding the model of autocorrelation. But recent work contends that the lagged dependent variable specification is too problematic for use in most situations. More specifically, if residual autocorrelation is present, the lagged dependent variable cau...

this study is aimed at evaluating and measuring the factors affecting the dezful wheat farmers` attitude toward the extension of wheat waste reduction. the method of research was correlative- descriptive. the population of this study is all farmers cultivated wheat in dezful from 2011 to 2012 (n=5291). the number of samples size was 360 based on krejcie and morgan table. panel of experts and al...