Consider Some of the Graphs You've Seen in Your Text

Multiple Choice

Consider some of the graphs you've seen in your text or elsewhere. Then imagine an experiment in which researchers compared the effects on problem solving of the administration of either Vitamin D or a placebo. In portraying the results of this experiment, the administration condition would appear on the _____-axis; a ______ graph would be most appropriate.

A) x; bar
B) x; line
C) y; bar
D) y; line