Summary: I constructed a conceptual model with few factors, affecting on 1 DV. All factors and effects are based on theory; however, most of them are vaguely defined and they seem hard to be quantified. In my try to quantify the factors, I am using observed variables or measures. Some factors are measured by only 1 observed var., whereas others are measured by 2 or 3 variables.
Questions When trying to prove/reject my hypotheses how should I proceed with the factors? E.g. my hypotheses are: * Factor 1 (measured by var.1 and var.2) positively affects DV. * Factor 2 (measured by var.3) positively affects DV.
Should I go for Confirmatory Factor Analysis (SEM) and then use the factor scores to test my hypotheses?
If yes, is it correct to include in the SEM factors constructed by only 1 observed variables?
Thanks for the support