If an experiment suffers from lack of____________, the experiment may appear to show that the null hypothesis is supported, when in reality, it should be rejected

Kyle buys a new refrigerator, but when he gets home, he cannot fit it through the front door of his house. Which of the following would describe the obstacle for Kyle's problem?

A) The refrigerator is outside of the house. B) The refrigerator is inside the house. C) Kyle can make the refrigerator narrower by taking the doors off of it. D) The refrigerator does not fit through the front door.

______ are commonly known as "downers."

a. Opiates c. Barbiturates b. Amphetamines d. Hallucinogens