As technology has become more advanced andaccessible in instructional settings, there has been an upward trend incomputer-based testing in the last decades. The present experimental studyexamines students’ behaviors during computer-based testing in two differentconditions and explores how these conditions affect the test results. Resultsindicate that some of the psychometric features of a test (reliability andvalidity) could be enriched on computer-based testing if students are providedoptimum item response time. In addition,it was found that providing optimum response time for each item influenced thestudents in the experimental group to not engage in rapid guessing behaviors.Thereby, students spent a reasonable amount of time answering the questions,which resulted in more reliable and valid scores, aforementioned. Lastly, there was no statisticallysignificant difference in two groups in terms of student performance.