The reaction time in a laboratory setting is typically measured in milliseconds (ms), not seconds.

Here's why:

* Human reaction time is very fast: Human reaction times are usually in the range of 150-300 ms. This is much faster than a full second.

* Precision: Measuring in milliseconds allows for greater precision in measuring small differences in reaction time, which is important for scientific studies.

So, while you might hear someone say their reaction time is "a second," in a lab setting, it would be more accurate to measure it in milliseconds.