This study aimed to identify sources of validity evidences of the Technology Performance Scale (EDETEC) to university students by the correlation with a Realization Factorial Scale (EFR) and verify the influence of genre, age and university level. The subjects were 169 students from engineering (20,7%), psychology (14,2%), nursing (47,3%) and medicine (17,8%) in a particular university of São Paulo state. The students' average age were 23,18 (DP=4,90), with 61,5% of women. It was found low correlations between EDETEC and EFR factors. Beside this, it was verified differences of average with statistically significance to all EFR factors, like total score and extreme groups of performance to EDETEC. It was identified genre and age influence to technologies performance; the program influences only communication tools factor performance. These data showed the sources of evidence validity to EDETEC.