Pick that Test!
Calculation
Conceptual
Statistical Sentence
Grab Bag?
100
A psychologist would like to examine the effects of sugar consumption on the activity level of preschool children. One group gets no sugar, one group gets a small dose, and the third group gets a large dose. The psychologist records the activity level for each child.
What is a One-Way ANOVA?
100
An analysis of variances produce SSbetween = 30, SSwithin = 60, and an F-ratio with df = (2, 15). For this analysis, what is MS-Within?
What is 60/15 = 4?
100
In a Two-Way ANOVA, what does the interaction measure?
What is the synergistic effect of the two IVS on the DV?
100
The results of a One-Way ANOVA are reported as follows: F(2, 72) = 3.70, p = .04. Based on this report, how many individuals were in the sample AND should you accept or reject the null?
What is N=75 AND reject the null?
100
What is the correct null hypothesis in statistical notation for a One-Way ANOVA with three groups?
What is µ1 = µ2 = µ3?
200
A researcher would like to examine how the chemical tryptophan, an ingredient in turkey, interacts with the consumption of alcohol to affect mental alertness. A sample of n = 9 college students is obtained and each student’s performance on a familiar video game is measured after eating a traditional Thanksgiving dinner including roast turkey and white wine. The average score was M = 14 points.
What is a Two-Way ANOVA?
200
An analysis of variances produce SSbetween = 30, SSwithin = 60, and an F-ratio with df = (2, 15). For this analysis, what is the value of N?
What is 15 + 2 = 17 + 1 = 18?
200
In a One-Way ANOVA, what does an F-ratio = 1.00 tell us about the treatment effect that has been analyzed?
What is there is no treatment effect?
200
What is the critical F value for a One-Way ANOVA with DF between = 3 and DF total = 19?
What is 3.24?
200
For an experiment comparing more than two treatment conditions, why should you use an ANOVA rather than separate t tests?
What is you will reduce your chance of making a Type I error?
300
A researcher is interested in testing the itching side effects some people reported when using their new line of hair products: Hairy Brand Hair Styles. He asked a sample of 10 girls to wash their hair with Hairy Brand Shampoo, another sample of 10 girls to condition their hair with Hairy Brand Conditioner, and another sample of 10 girls to spray their updos with Hairy Brand Hair Spray. The researcher then recorded how many times each girl scratched her head in an hour.
What is a One-Way ANOVA?
300
An analysis of variances produce SSbetween = 30, SSwithin = 60, and an F-ratio with df = (2, 15). For this analysis, what is the F-ratio?
What is 15/4 = 3.75?
300
A psychologist uses a One-Way ANOVA to examine the effects of sugar consumption on the activity level of preschool children. One group gets no sugar, one group gets a small dose, and a third group gets a large dose. After recording the activity level for each child, the psychologist determines that the value of η2 for this analysis is .645. What does this tell us about how sugar consumption affects activity levels?
What is 64.5% of the variance in activity level can be explained by sugar consumption?
300
You obtain the following results for a Two-Way ANOVA. What can you conclude about the main effects for each IV and the Interaction? Main effect of Political Affiliation: F(3,68) = 2.65, p >.05 Main effect of Ethical Orientation: F(3, 68) = 5.45, P <.05 Interaction: F(3, 68) = 6.87, p <.05
What is there is a significant interaction and main effect of ethical orientation but there is not a significant effect of political affiliation?
300
A two-way ANOVA has a significant interaction of Gender and Marital Status on measures of Happiness. Married women M= 8, Married men M= 15, Single men=6, Single women = 13. Draw the graph using the following information, and use this to help you explain the interaction in words
Women tend to be happier when they are single rather than married. Men tend to be happier when they are married rather than single.
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