The duration of time needed to identify, recognise, and formulate a proper response to a visual (seeing), auditory (hearing), or kinesthetic (touch) stimuli is measured using reaction time tests. But first, let's review the three categories of reaction time: basic reaction time, complex reaction time, and detection response time. 1.Simple reaction time: one stimulus and one response. 2.Selective reaction time: Multiple stimuli with distinct responses are presented. 3. Detection response time: a number of stimuli, one response to a single stimulus only, and no response to other stimuli. The intensity of the stimulus, whether the stimulus needs to be recognised rather than just detected, and if there are multiple stimuli to choose from all have a significant impact on how quickly an answer is given. This is because it takes longer to analyse complex stimuli than simple ones. Additionally, the nature of stimuli also affects reaction time. The quickest response is often elicited by a kinesthetic stimulus (110–170 ms), followed by an auditory (140–160 ms), and then a visual (180–200 ms) stimulus. With these factors in mind, it is simple to understand why there aren't any universally applicable techniques for measuring response time.