Dr. Lugo is lecturing on various statistical analyses in class. He notes the definition for a one-way analysis of variance as:
A) a statistical test in which both variables are categorical and which determines if the distribution of participants across categories is different than expected.
B) a statistical test that examines all of the possible combinations of conditions in a way that statistically accounts for the fact that we did not predict them ahead of time.
C) a statistical test that determines whether responses from the different conditions are essentially the same or whether the responses from at least one of the conditions differ from the others.
D) a statistical test that allows a priori decisions to test comparisons between groups predicted ahead of time.

Question

Quizplus · Accepted Answer

A one-way analysis of variance (ANOVA) is used to determine whether there are statistically significant differences between the means of three or more independent (unrelated) groups. It tests the hypothesis that the means of various groups are equal, and specifically, it assesses whether the evidence suggests that at least one group mean is different from the others.

Dr Lugo Is Lecturing on Various Statistical Analyses in Class