To ensure the face and content validity, before the survey administration the questionnaire was reviewed by three
academics and three retail industry professionals and pilot testing was carried out with a group consisting of
twenty retail customers. Results permitted us to consider the questionnaire definitive. A statistical package for
social science (SPSS) version 19.0 was used to analyse the data. Cronbach’s Alpha was used to assess the
questionnaire reliability. The reliability assessment was 0,965 (according to Bagozzi, Yi and Philips (1998)
construct must meet the minimum reliability of 0,600). Principal Component Analysis (PCA) method was applied
to the twenty six items of retail service quality to identify the dimensions. Finally, regression analysis was applied
in defining the relationship between dependent variable loyalty and independent variables (Factors of retail
service quality extracted by PCA).