by Suf | Dec 21, 2024 | R, Statistics
When conducting multiple statistical tests, the chance of obtaining false-positive results increases significantly. The Bonferroni correction is a simple yet powerful method to control this familywise error rate. In this guide, we’ll walk through implementing...
by Suf | Dec 19, 2024 | R, Statistics
Inter-rater reliability is crucial in research involving multiple raters or judges. Cohen’s Kappa stands out as a robust statistic that accounts for chance agreement, making it particularly valuable in fields like psychology, medicine, and education. This...
by Suf | Dec 11, 2024 | R, Statistics
Cronbach’s alpha is one of the most widely used measures of internal consistency reliability in psychological and educational research. It helps researchers determine how well different items on a scale measure the same underlying construct. This guide will...
by Suf | Nov 20, 2024 | Data Science, Programming, R, Tips
Table of Contents Introduction The Basics of set.seed() Why Use set.seed()? Best Practices Common Use Cases Troubleshooting Advanced Usage: Random Number Generators (RNGs) in R Conclusion Introduction In R programming, reproducibility is crucial for scientific...
by Suf | Nov 13, 2024 | Programming, R, Statistics
Understanding the Two-Sample t-Test (Pooled Variance) Table of Contents Introduction to the Two-Sample t-Test Formulae for the Two-Sample t-Test When to Use a Two-Sample t-Test Performing a Two-Sample t-Test in R Practical Example Interpreting Results Assumptions and...
by Suf | Nov 11, 2024 | Programming, R, Statistics
How to Calculate a One-Proportion Z-Test in R Table of Contents Introduction to One-Proportion Z-Tests When to Use a One-Proportion Z-Test Formula for the One-Proportion Z-Test Calculating Left-Tailed, Right-Tailed, and Two-Tailed p-values from the Z-score Calculating...
