뒤로Multiple Comparisons: Tukey-Kramer Test definitions
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A statistical method used to compare means across multiple groups, determining if at least one group differs significantly. Null Hypothesis
An assumption that all group means are equal, serving as the starting point for statistical testing. Post Hoc Test
A follow-up analysis performed after rejecting the null hypothesis to identify which group means differ. Tukey Kramer Test
A procedure for comparing every possible pair of group means to pinpoint specific differences after ANOVA. Critical Value
A threshold from statistical tables used to decide whether a test statistic indicates a significant difference. Q Statistic
A calculated value for each pairwise comparison, used to assess if the difference between means is significant. Studentized Range Distribution
A probability distribution used to obtain critical values for the Tukey Kramer test, often referenced as the q table. Degrees of Freedom
A value representing the number of independent data points minus the number of groups, crucial for table lookup. Mean Squares Due to Error
A measure of variance within groups, sourced from the ANOVA output and used in Tukey Kramer calculations. Sample Size
The number of observations in each group, affecting the denominator in the Tukey Kramer formula. Alternative Hypothesis
A statement suggesting at least one group mean differs from the others, tested in pairwise comparisons. Variance Within
The spread of data points inside each group, equivalent to mean squares due to error in ANOVA. Pairwise Comparison
The process of evaluating every possible pair of group means to detect specific differences. Alpha
The significance level, often set at 0.05, determining the threshold for rejecting the null hypothesis. F Table
A reference chart for critical values in ANOVA, similar in function to the q table for Tukey Kramer.
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