Dr. Jacob had four comparison conditions in his study, and after he collected and summarized his data, he had a different mean for each of his four groups. In order to determine whether the differences were statistically significant, Dr. Jacob should use a test called:

Question

Quizplus · Accepted Answer

The analysis of variance (ANOVA) technique is used to determine whether there are statistically significant differences between means in multiple comparison groups. Therefore, it is the best choice out of the given options. The correlation coefficient test is used to measure the strength and direction of a relationship between two variables, not to compare means. The z-score test is used to compare an individual score to a population mean and standard deviation, not to compare means of multiple groups. The standard deviation test is not a commonly used statistical test and does not have a specific meaning.

Dr Jacob Had Four Comparison Conditions in His Study, and After