Abstract: A system for filtering results from tests that include reaction time as part of the test results includes an input device that receives respondent input in response to queries. A task engine is associated with the input device and the task engine presents the queries and receives the respondent's input to the queries, and associates a reaction input time for each of the respondent's inputs. A results database receives the respondent's input and the associated reaction input time. At least one filter is associated with the task engine which compensates for artifacts that adversely affect the associated reaction input time.