arlier, to control for learning effects). The response is the number
of taps in a fixed time interval.
</p>


<h3>Source</h3>

<p>The data was found in Statistics in Biology, Vol. 1, by C. I. Bliss (1967), New York: McGraw Hill.
</p>
<p>The original article is Scott, C.C. and Chen, K. K. (1944), &quot;Comparison of the action of 1-ethyl theobromine and caffeine in animals and man,&quot;  Journal of Pharmacological Experimental Therapy, v. 82, pp 89-97.
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