Computer testing enables the measurement of additional parameters when applying various psychological tests. Those parameters include the level of confidence in the response correctness and the response time. This research will analyse the justification of including the level of confidence and response time as potentially useful parameters in the construction of tests and evaluation of individual results. Previous research has confirmed the connection between level of confidence and the overall score in the test (Buratti & Allwood, 2012b). For the correlation between response time and overall score researches provide equivocal conclusions (Troche & Rammsayer, 2005). In this research, 168 participants responded to a computer test of cognitive abilities (Test S). Analyses were conducted on the task characteristic level and participants' performance level in the individual tasks and the entire test. At the task characteristic level, the difficulty index showed a positive correlation with the average level of confidence and a negative correlation with the average response time. The analysis at the participants’ level showed a positive connection between the overall score and the average level of confidence in response correctness. No correlation was found between the average response time and the average overall score, nor with the average level of confidence. In the regression analysis, the prediction model explained 68.3% of the variance of the average level of confidence, but not of the response time. Although additional reviews are needed in future research, there is certainly potential for including the level of confidence and response time in the psychometric analysis of test results.