Why my reaction time dey slower for phone pass computer?

Na calculation examples be these, no be corrections for phone-versus-desktop wey research don publish. Stimulus fit wait make screen refresh, but the full time wey e take show am still depend on how dem render am and the display itself. Input registration dey follow another path. Measurements across online platforms show say accuracy and precision dey change based on the equipment and software wey dem combine. Anwyl-Irvine et al., 2020 Bridges et al., 2020

Wetin the time wey dem show include?

The recorded interval start and end for software events. E suppose approximate the time between when you see cue and when you respond, but the physical events fit happen after the software timestamps suggest. One lab study show the size of this difference: Woods and the other researchers report 231 ms as measured simple reaction time and 213 ms after dem correct for their equipment. The 18 ms correction na for that equipment, e no be correction for your phone. Woods et al., 2015

Touching screen, clicking mouse and pressing key need different movements too. If you change how you respond, the task don change even if the page look the same. Choice-reaction experiment add choosing response, so you no fit compare am directly with simple tap-on-green task. Woods et al., 2015

Why average wey smooth pass no mean say e accurate pass

Accuracy mean how near the result dey to the true physical interval; precision mean how consistent e be. Device fit delay things the same way every time, so the score stable but shifted. Repeating the test fit help estimate how much results dey vary, but e no remove fixed hardware offset. This difference na key part of the experimental timing comparisons. Anwyl-Irvine et al., 2020 Bridges et al., 2020

Wetin else dey change when you change device?

Screen size, how you sit or stand, finger position and how familiar you be with the device fit change together with the hardware. Age differences wey one controlled study report no fit show say score difference wey hardware cause mean biological ageing. Comparing yourself with another person wey dey use different device get the same uncertainty. Woods et al., 2015 Woods et al., 2015

Reaction-time results also get some unusually slow responses. One lapse fit change the mean plenty for short test. So outlier rules and whether you use mean, median or fastest response matter; choosing the summary wey look best after the test spoil the comparison. Ratcliff, 1993

One useful way to compare your own test runs

Keep separate record for each device and input method. Compare the same kind of things, including number of attempts and the summary statistic. Repeating one fixed method dey easier to understand than switching between devices and keeping the smallest score. Research on number of trials show say the right amount of data depend on wetin you dey try to estimate. Miller, 2023

Practice fit also improve how person perform for cognitive tasks wey dem repeat. E make sense say familiarity fit matter, but general retest meta-analysis no tell us the exact practice gain for this browser game. And big difference between two runs no prove say person get one reliable trait: researchers must measure how reliable cognitive tasks be instead of assuming am. Scharfen et al., 2018 Hedge et al., 2017

So no rule wey evidence support say make you subtract the same delay from every phone result. To calibrate, you need measure the actual system wey show the stimulus and collect input. Knowing refresh rate alone no enough. Anwyl-Irvine et al., 2020 Bridges et al., 2020