Exhibit 12-1: Indicate Whether the Following Hypotheses Are Necessarily Ex

Multiple Choice

Exhibit 12-1: Indicate whether the following hypotheses are necessarily ex post facto research or possible to perform with experimental research.
-Refer to Exhibit 12-1.Black and white computer graphics produce less eyestrain for visually impaired persons than do color monitors.

A) necessarily ex post facto research
B) possible to do with experimental research