Browsing Tag

Statistical testing

7 posts
testing model fit differences

Likelihood Ratio Tests: An Introduction

Would you like to learn how likelihood ratio tests determine whether adding complexity truly improves your model’s fit?
testing variance equality

F-Test for Equal Variances Explained

Learning about the F-Test for Equal Variances reveals how to determine if two populations have similar variability, but understanding its full application requires further reading.
testing directionality differences

One-Tailed Vs Two-Tailed Tests: What’s the Difference?

The difference between one-tailed and two-tailed tests can significantly impact your results; discover which approach suits your analysis best.
categorical data independence test

Chi-Square Test of Independence: Categorical Data Analysis

Perform a Chi-Square Test of Independence to determine if two categorical variables are related, and discover how to interpret the results effectively.
test for normal distribution

Shapiro–Wilk Test Made Simple

On how the Shapiro–Wilk test simplifies checking data normality and why understanding its results can improve your statistical analysis.
assessing variance equality assumption

Levene’s Test Explained in Plain English

Theoretically simple, Levene’s Test helps determine if groups have equal variances, but understanding its process is key to proper data analysis.
performing one way anova

How to Perform a One-Way ANOVA in R

Theoretically, performing a one-way ANOVA in R involves organizing data properly and interpreting results to determine group differences effectively.