reliabilities

Posted by JR on Jan 26, 2011; 9:26am
URL: http://spssx-discussion.165.s1.nabble.com/reliabilities-tp3357594.html

Hello everybody,

in a study I have 4 groups who absolved a test at 3 measurement occasions. I computed the Split-half-reliability separated for groups and measurement occasions (12).

How can I compute the reliability separated for the 4 groups only (every reliability should include the three measurement occassions one group)?

Can anybody help me?

Thanks,
JR