Write this result in APA style.
A social psychologist would like to examine the relationship between personal appearance and authority. A special questionnaire is prepared which requires very careful attention to instructions in order to fill it in correctly. Three random samples of college students are obtained. For the first group, the psychologist dresses very casually (blue jeans and T-shirt) when the questionnaire is administered. For the second sample, the psychologist wears a suit, and for the third sample, the psychologist wears a very “scientific” laboratory coat. The psychologist records the number of errors made by each individual while completing the questionnaire. These data are as follows:
Blue Jeans Suit Lab Coat
4 2 1
5 4 2
4 1 1
7 3 2
4 2 2
Ans: A one-way, between-subjects ANOVA revealed an overall effect of type of dress on the number of errors participants made in the experiment, F(2, 12) = 12.61, p < .05, ?p2 = .678. Tukey’s honestly significant difference (HSD) test showed that when the experimenter was dressed informally (M = 4.80, SD = 1.30), participants made more errors than when the experimenter was dressed formally (M = 2.40, SD = 1.14) or in a lab coat (M = 1.60, SD = 0.55), both ps < .05. There was no statistically significant difference in the number of errors made when the experimenter was dressed formally or in a lab coat, p < .05.
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