Re: calculating reliability

[Paul Swank]

As long as you consider relative error and not absolute error, that is, as long as the consistent time effect is not considered error, then the correlation between test 1 and test 2 is the same as the generalizability coefficient obtained from the ANOVA mean squares.


At 08:06 AM 3/22/01 +0300, Awahab El-Naggar wrote:
>Dear Colleagues
>I have been using "test-retest" method for calculating reliability by
>applying the Pearson Product Moment (PPM) analysis. However, I have been
>told that this not the right way to calculate reliability, and I should use
>the ANOVA to calculate the reliability. Would you comment and advise me.
>Many Thanks.
>A'Wahab
>
>
>
>
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------------------------------------
Paul R. Swank, PhD.
Professor & Advanced Quantitative Methodologist
UT-Houston School of Nursing
Center for Nursing Research
Phone (713)500-2031
Fax (713) 500-2033

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