Hi
I have a latent construct with tow manifest variables (reflective) highly correlated (.91). smartpls estimate the cronbach alpha to .55 while SPSS give .82. I d'on't understand why...could you help about this?
thanks
carole
discrepancy for cronbach alpha between smartpls and spss
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jmbecker
- SmartPLS Developer
- Posts: 1284
- Joined: Tue Mar 28, 2006 11:09 am
- Real name and title: Dr. Jan-Michael Becker
Re: discrepancy for cronbach alpha between smartpls and spss
I think this has been answered several times here in the forum: The difference comes from standardizing the variables in PLS. If you calculate Cronbach’s Alpha on the standardized variables in SPSS you should get the same result.
Another possibilities are untreated missing values or problems when importing variables with decimal signs (and not correctly choosing the decimal separator).
Another possibilities are untreated missing values or problems when importing variables with decimal signs (and not correctly choosing the decimal separator).
Dr. Jan-Michael Becker, BI Norwegian Business School, SmartPLS Developer
Researchgate: https://www.researchgate.net/profile/Jan_Michael_Becker
GoogleScholar: http://scholar.google.de/citations?user ... AAAJ&hl=de
Researchgate: https://www.researchgate.net/profile/Jan_Michael_Becker
GoogleScholar: http://scholar.google.de/citations?user ... AAAJ&hl=de
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carole
- PLS Junior User
- Posts: 8
- Joined: Mon Oct 10, 2016 10:37 am
- Real name and title: carole fantini, researcher
Re: discrepancy for cronbach alpha between smartpls and spss
thanks a lot. I have searched on the forum without any success..I have probably entered an incorrect request...