Effect of Caffeine on Reaction Time

Easy Data Representation Interpreting Experimental Data

In a scientific study, researchers investigated the relationship between the amount of caffeine consumed and reaction time. They conducted an experiment with three groups of participants: one group consumed 0 mg of caffeine, the second group consumed 100 mg, and the third group consumed 200 mg. After a standardized reaction time test, the researchers recorded the times in milliseconds for each group.

The results are summarized in the table below:

Caffeine (mg)	Average Reaction Time (ms)
0	320
100	290
200	270

Based on the data presented, what can be inferred about the effect of caffeine on reaction time?

Caffeine has no effect on reaction time.

Higher caffeine intake is associated with slower reaction times.

Increasing caffeine consumption leads to faster reaction times.

Reaction times improve until a certain caffeine threshold is reached.

Hint

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