Lucille is interested in the effects of alcohol consumption on style of play while playing the video game Sims.She asks a group of 15 college students to play Sims under one of the following conditions: no alcohol, 1 ounce of alcohol, 2 ounces of alcohol, or 3 ounces of alcohol.Lucille measures on a scale of 1 to 10 how prosocial the students' style of play is.After collecting the data, Lucille performs an ANOVA and finds that she can reject the null hypothesis.On this basis, what does Lucille know?
A) She knows that greater levels of alcohol consumption are associated with a more prosocial style of play.
B) She knows that there is a difference among the groups somewhere, but she does not know where.
C) She knows that moderate alcohol consumption is associated with prosocial play, but that greater alcohol consumption is associated with an antisocial style of play.
D) She knows that drinking any amount of alcohol affects the style of play.

Question

Quizplus · Accepted Answer

Lucille only knows that there is a difference among the groups somewhere, but she does not know where. The ANOVA only tells us that there is a statistically significant difference, but it does not provide information on the direction or magnitude of the difference. Further analysis such as post-hoc tests or planned contrasts are needed to determine which groups are significantly different from each other.

Lucille Is Interested in the Effects of Alcohol Consumption on Style