If the results of a two-factor ANOVA show no main effect for factor A but show a significant interaction, then the results indicate that factor A has no effect on the subjects' scores. True or False
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If the results of a two-factor ANOVA show no main effect for factor A but show a significant interaction, then the results indicate that factor A has no effect on the subjects' scores. True or False
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- In a two-way ANOVA, the main effect of a factor is the A. extent to which the factor produces dependent variable scores different from those the other factor produced. B. effect that changing the levels of the factor has on the dependent variable, taking into account all other factors in the study. C. effect that changing the levels of the factor has on the dependent variable, ignoring all other factors in the study. D. extent to which its effect depends on the other factor.If the results from a two-factor ANOVA show a significant main effect for both factors, what can you conclude about the interaction between the two factors? a. There must be a significant interaction. b. There probably is a significant interaction. c. The interaction cannot be significant. d. You cannot make any conclusion about the significance of the interaction.In a randomized block experiment with treatment Factor T , what is the purpose of doing a multiple comparison if the treatment factor effect is signicant?
- Think of a research scenario for which either 1-way or 2-way ANOVA would be needed to analyze the results.Suppose, when conducting a 2-way ANOVA, you find significant main effects for both of your factors of interest (i.e. gender and educational attainment, categorized as high school graduate or less vs. more than a high school education), but no significant interaction between the 2 factors. Which of the following statements, if any, are reasonable conclusions? Question 22 options: A) Since there is no significant interaction between gender and educational attainment, we can conclude that the outcome does not differ between groups. B) Since there is a significant main effect for gender, then the outcome must be significantly different between males and females. C) Since there is a significant main effect for educational attainment, then the outcome must be significantly different between the 2 educational attainment groups. D) All of the above are reasonable conclusions. E) Answers B and C are reasonable…If no main effects emerge in a two-factor ANOVA, there must also be no significant interaction between the two factors. Group of answer choices True False
- What does a non-statistical evaluation of the graphs of data for the two-factor experiment suggests?How many separate groups of participants would be needed for a two-factor ANOVA with 3 levels of factor A and 3 levels of factor B?A researcher conducts an independent-measures, two factor study with two levels of factor A and two levels of factor B, using a sample of n = 8 participants in each treatment condition. a. What are the df values for the F-ratio evaluating the main effect of factor A? b. What are the df values for the F-ratio evaluating the main effect of factor B? c. What are the df values for the F-ratio evaluating the interaction?
