A Psychologist Is Interested in Whether Hypnosis Affects Brain Dominance

Multiple Choice

A psychologist is interested in whether hypnosis affects brain dominance. Twelve college students from the freshmen class are randomly sampled for an experiment. The experiment has two conditions which are given on different days. In condition 1, the students are hypnotized and then given a test which measures the relative dominance of the right and left hemispheres. The higher the score, the more dominant is the right hemisphere. In condition 2, the same students are given the test again, only this time they are not hypnotized but are in their normal state of consciousness. The following scores are obtained. Using a = 0.05 2 tail , your conclusion is _________.

A) accept H 0 ; hypnosis has no affect on brain dominance
B) retain H 0 ; we cannot conclude that hypnosis affects brain dominance
C) reject H 0 ; hypnosis affects brain dominance
D) change H 0