Mauchly's test of sphericity is a statistical test used to assess whether the assumption of sphericity is met in repeated measures ANOVA, which is crucial for the validity of F-tests. If the test indicates a violation of sphericity, adjustments such as the Greenhouse-Geisser or Huynh-Feldt corrections are applied to the degrees of freedom to maintain the integrity of the analysis.

Mauchly's Test Of Sphericity

Mauchly's test of sphericity

A statistical test is a method used to determine if there is a significant effect or relationship present in a dataset, often by comparing observed data against a null hypothesis. The choice of test depends on the data type, distribution, and the specific research question being addressed.

statistical test

assumption of sphericity

Repeated measures ANOVA is a statistical technique used to analyze data where the same subjects are measured multiple times under different conditions. It accounts for the correlation between repeated measures, providing more accurate results than a traditional ANOVA when dealing with within-subject factors.

repeated measures ANOVA

validity of F-tests

violation of sphericity

Greenhouse-Geisser corrections

Huynh-Feldt corrections

Degrees of freedom refer to the number of independent values or quantities that can be assigned to a statistical distribution or model without violating any constraints. They are crucial in determining the validity of statistical tests and models, influencing the shape of distributions and the accuracy of parameter estimates.

Your Courses

Relevant Degrees

Your Lessons