... results of factor analysis showed5 factors of the 22 items of the SERVQUAL model. The 5 factors of perception explained 72.94% of the total variance there; and on expectations it explained 77.12% of ... scale. The third part of these questionnaires is composed of the patient's background data, such as sex, age, job, level of education achieved, date of LASIK surgery, and the out-come of the ... differences in the expectation scores among the different jobs. Also, the results showed that the higher the education of the patient, the lower their perception score (r = -0.10). The factor loading...