In this paper, the issues and necessary conditions are examined for multiple
regression and structural equation models to be used for analyzing the
relationship between quantitative variables in non-experimental studies and
the analysis methodology are explored accordance with that. Also estimating
methods of direct effect, indirect effect, and total effect among variables by
direct multiple regression and applying multiple regression on casual models
are examined by comparing the two estimation methods. For illustrative
purpose, hypothetical data are analyzed and presented by using the general
statistical analysis SW SPSS.and comparative analysis methods. And, to the subject
of illustration of the material of the virtual, using the SPSS of normal
general-purpose statistics SW, it presented the actual analysis case.