For Marx, cities announced a transition to "barbarism."

In within-subjects designs, each participant

A) is measured at least five times. B) serves as his or her own control. C) is measured only once. D) is randomly assigned to one of two conditions.

In within-subjects designs, the scores in each condition are

A) correlated with scores in other conditions. B) not correlated. C) almost always nominal. D) None of the above