The question is about Hick's Law - Choice Reaction Time in motor learning.

The chart below shows how the number of stimulus-response (S-R) alternatives affects reaction time due to an increase in information processing. You will perform 10 trials of four different S-R alternative conditions: 1) simple RT (1-choice condition), 2-choice RT, 4-choice RT, and an 8-choice RT condition.

My Question: Are there any potential sources of error in the experiment? Is it accurate to call this experiment a "reaction time" experiment? Does the experiment measure what it's supposed to? Provide an explanation for your answer.

A B C D E F G K Simple RT (1 choice choice RT4 choice RT8-choice RT 235 283 354 43:3 10 10 10 10 lean RT (as) 235 283 354 433 Log2 (N) (bits 3. 321928095 3. 32192809 3. 32192809 3. 32192809 235 b 48 10: Mean RT (reaction time) as a function of the number of bits of information. 450 438 400 854 850 500 19 20 283 250 295 Mean RT(ms) 200 150 100 2 number of bits of information