Reliability
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.
Transcript
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Your Turn
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?
Learn More
Read more about the omega() and alpha() functions in the psych package.
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.
Have any questions? Put them below and we will help you out!
Course Content
21 Lessons
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Maria Cristina Limlingan • January 14, 2022
Thanks for sharing about omega - this is good information to know. I'm wondering if you suggestions about how to do inter rater reliability between two people in R? (e.g. 2 people doing an observation and want to find out if they are coding similarly)