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Inferential Statistics with R
- Welcome to Inferential Statistics with R
- Introduction to the Dataset
- Independent t-test
- Dependent t-test
- One-Way ANOVA
- Post Hoc Comparisons
- Other ANOVA Tests
- Dealing with Small Cells
- Linear Regression
- Multiple Regression
- Hierarchical Regression
- Extracting Output
- Reporting Results
- Testing Assumptions
- Testing for Normality
- Testing for Homogeneity of Variance
- Violated Assumptions
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This lesson is called Reliability, part of the Inferential Statistics with R course. This lesson is called Reliability, part of the Inferential Statistics with R course.
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Perform a test of internal consistency using both omega and alpha on the SWLS scale at time 2.
Does the scale have good internal consistency at time 2, as well?
The Personality Project also has a great tutorial on Using R and the psych package to find omega.
Interested in learning more about why it may be preferential to use omega instead of alpha? Check out the article "Thanks coefficient alpha, we'll take it from here " by McNeish (2018). Use this link to download the unformatted open access version of the article.