T-Tests Specific: One, Two, or Paired
This statistical test compares the means of two related or paired groups.
What is the dependent (paired) t-test?
The t-test is this type of statistical test that assumes the data is normally distributed.
What is a parametric test?
This test is used when analyzing the study hours per week in students enrolled in online classes versus students enrolled in in-person classes.
What is the two-sample t-test?
Each categorical independent variable used in the two-way ANOVA has this many levels or groups.
What is two or more?
Dosage regime (high versus low) would be an example of this type of variable.
What is an independent variable?
The statistical test is used to compare the means between two separate groups.
What is an independent (two) samples t-test?
The t-test is most effective when analyzing this type of data.
What is normally distributed data?
This test would be used when analyzing how study method (flashcards, practice quizzes, or active recall) affect test scores.
What is one-way ANOVA?
One-way ANOVA allows for comparison of this between the predefined groups.
What are the means?
The ANOVA is this statistical test that assumes the data to be normally distributed and have equal variances within the groups.
What is a parametric test?
This statistical test compares if a mean differs from a hypothesized value.
What is the one-sample t-test?
This is the maximum number of groups the t-test works with.
What is two groups?
This test is used when analyzing if the average number of hours studied per week by students in a specific class is different than the national average of 15 hours studied per week.
What is the one-sample t-test?
The two-way ANOVA must have two or more categorical independent variables in addition to this amount of continuous dependent variable(s).
What is one continuous dependent variable?
The size of the F-statistic when there is a significant difference between the means of the predefined groups.
What is large?
The two-samples t-test is appropriate when the observations or measurements in each group are this of each other.
What is independent?
The t-test is a powerful test that is able to detect this between the means of two groups.
What are small differences?
This test would be used when analyzing how gender (female vs male) and study method (alone vs group) affect test scores.
What is two-way ANOVA?
The one-way ANOVA does everything this test can do, but with three or more groups.
What is a t-test?
This is the statistic used to calculate the variation of the two sources included in the ANOVA.
What is F-statistic?
The paired samples t-test is used when data is collected from ______ under two different conditions or time points.
What is the same subjects?
This is an assumption that the t-test makes.
What is homogeneity of variance?
What is continuous data?
What is randomly sampled data from a population?
What is normal distribution?
This test is used when analyzing the average test scores of a class of students before and after they try a new study method (flashcards).
What is the paired sample t-test?
This is the main difference between a one-way and a two-way ANOVA.
What is the number of independent variables?
We use this analysis because an ANOVA does not tell us the differences between groups.
What is post hoc analysis?
What is Tukey's HSD or Bonferroni correction?