EN
Research problem analysed in the paper concentrates on the impact of the choice of scale on the the goodness of fit of the Structural Equation Model. For that purpose the primary research tool were built and used for conducting two rounds of research. In the first round two groups of respondents were given two different questionaries dealing with the same research problem (same set of research questions) but using different, 5 or 10 point scales. After one week the same groups of respondents were asked again to assess the research problem by using different type of scale. Obtained empirical data were used to build the structural equation models (for 5 and 10 point scales) of the analysed research problem. Thanks to the collected empirical data it was possible to analyze the impact of the choice of scale on internal (AVE, Cronbach’s Alfa, Composite Reliability) and external (R2) goodness of fit of the model.