A-ha, I just checked (Snijders & Bosker, 1999, pp. 24-26) on 'Reliability of aggregated variables'.
For an empty two-level random-intercept model, where 'number of items' is Level 1 cluster size and constant:
Reliability = Level 2 var / (Level 2 var + [(Level 1 var)/number of items])
So I'm ...
Search found 2 matches
- Wed Mar 02, 2011 12:53 pm
- Forum: MLwiN user forum
- Topic: Scale reliability: items within occasions within persons
- Replies: 1
- Views: 15059
- Tue Mar 01, 2011 2:08 pm
- Forum: MLwiN user forum
- Topic: Scale reliability: items within occasions within persons
- Replies: 1
- Views: 15059
Scale reliability: items within occasions within persons
Hello all,
I would like to know the internal consistency reliability (Cronbach's alpha equivalent) of a five-item Likert scale that a sample of people fill out on ten occasions, taking into account the nested data structure.
One way this has been done (e.g., Nezlek & Gable, 2001) is to construct ...
I would like to know the internal consistency reliability (Cronbach's alpha equivalent) of a five-item Likert scale that a sample of people fill out on ten occasions, taking into account the nested data structure.
One way this has been done (e.g., Nezlek & Gable, 2001) is to construct ...