Lecture 4: Principles of Psychometrics: Reliability II - jhsph ocw
Lecture 4: Principles of Psychometrics: Reliability II - jhsph ocw
Lecture 4: Principles of Psychometrics: Reliability II - jhsph ocw
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. 90<br />
=<br />
MSB −<br />
pilot<br />
MSB<br />
Solution 2<br />
MSW<br />
pilot<br />
There is inherent assumption here that the national<br />
sample will have the same makeup with regard to<br />
severity. If that’s not so, then the reliability may<br />
drop because the between-person variance in the<br />
national sample was lower than it was in the pilot<br />
sample, while the within-person variance was<br />
presumably about the same.