Hi,
I've collected data for a variable "High Performance Work Practice (HPWP)" and it's 14 Item instrument with 5 point likert scale.
Reliability found as a result of 14 Item is 0.917
Baseline study of this variable have Cronbech Alfa lesser than this which I found in my data.
Source paper has calculated Cronbech Alfa in 3 constructs as follows;
4 Items = .846
6 items = .773
4 items = .737
Now my Cronbech Alfa 0.917 is higher than any of these above.
Question: Is this justifiable? Because mostly examiners have opinion that scholars Cronbech Alfa should not be Higher than of what initial instrument maker has found.
Thanks