Finger tap rates after drug administration
A data frame with 12 observations on the following 4 variables.
ID
Case ID
Rate
Finger taps in a fixed time interval
Subj
Subject code (A
, B
, C
, or D
)
Drug
Drug administered (Ca
=caffeine, Pl
=placebo, or Th
=theobromine)
Scientists Scott and Chen published research that compared the effects of caffeine with those of theobromine (a similar chemical found in chocolate) and with those of a placebo. Their experiment used four human subjects and took place over several days. Each day each subject swallowed a tablet containing one of caffeine, theobromine, or the placebo. Two hours later they were timed while tapping a finger in a specified manner (that they had practiced earlier, to control for learning effects). The response is the number of taps in a fixed time interval.