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.Using a physical touch while giving feedback to mentally disabled children is more effective than verbal feedback alone.

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