A researcher assigns 21 adolescents to rate the likability of a person described in a vignette as having one of three personality traits.An equal number of participants are assigned to each group.If = 4.08 for this study,then what was the decision at a .05 level of significance for a one-way between-subjects ANOVA?
A)Reject the null hypothesis.
B)Retain the null hypothesis.
C)There is not enough information to answer this question.

Question

A researcher assigns 21 adolescents to rate the likability of a person described in a vignette as having one of three personality traits.An equal number of participants are assigned to each group.If  = 4.08 for this study,then what was the decision at a .05 level of significance for a one-way between-subjects ANOVA?
A)Reject the null hypothesis. 
B)Retain the null hypothesis. 
C)There is not enough information to answer this question.

Quizplus · Accepted Answer

Since the F-ratio (11eaab06_0b30_9d2c_ac44_ad4d6989c671_TB6823_11) is significant at the p < .05 level, we can reject the null hypothesis and conclude that at least one of the three personality traits has a different effect on likability ratings.

A Researcher Assigns 21 Adolescents to Rate the Likability of a Person