What does a Cronbach's alpha score of .88 indicate about Dr. Suzuki's measure of optimism?
Understand the Problem
The question is asking about the implications of a Cronbach's alpha score of .88, specifically regarding Dr. Suzuki's measure of optimism. The key concept here is understanding what a Cronbach's alpha score indicates in terms of internal consistency in measurement tools.
Answer
A Cronbach's alpha of 0.88 indicates a good to excellent reliability.
A Cronbach's alpha score of 0.88 indicates a good to excellent level of internal consistency reliability for Dr. Suzuki's measure of optimism.
Answer for screen readers
A Cronbach's alpha score of 0.88 indicates a good to excellent level of internal consistency reliability for Dr. Suzuki's measure of optimism.
More Information
Cronbach's alpha is a statistic used to measure the internal consistency or reliability of a set of items or scale. A score above 0.70 is generally considered acceptable, with scores over 0.80 regarded as good, and over 0.90 as excellent.
Tips
Be careful not to assume that a high Cronbach's alpha suggests the scale items are unidimensional.
Sources
- Cronbach's Alpha - Statistics Solutions - statisticssolutions.com
- What does Cronbach's alpha mean? | SPSS FAQ - OARC Stats - stats.oarc.ucla.edu
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