Two Meanings of Experimental Control

To make this more concrete, consider a situation where there are only two conditions with just four participants in each; and where under the

Treatment Condition

the dependent variable scores for the participants are 80, 70, 60, and 50% correct, with a mean of 65%; and where for the Control Condition the scores for the participants are 70, 60, 50, and 40% correct, with a

mean of 55%.