A researcher has 18 participants rate the morality of a person described in a vignette as being registered as a Democrat,Republican,or Independent.If F_obt= 3.41 for a one-way within-subjects ANOVA,then what was the decision at a .05 level of significance? A) reject the null hypothesis B) retain the null hypothesis C) there is not enough information to answer this question

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A one-way within-subjects ANOVA compares the means of three or more groups on a single dependent variable where each participant is tested under all conditions (in this case, the three political affiliation conditions). An FS statistic is calculated and compared to a critical value determined by the degrees of freedom and alpha level. If the FS statistic exceeds the critical value, the null hypothesis (that there is no significant difference between the means of the groups) is rejected. Since the FS statistic in this case is 3.41, and the significance level is .05, which means the critical value is exceeded, we reject the null hypothesis.

A Researcher Has 18 Participants Rate the Morality of a Person