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
Please refer to:
1. Landau, S. and Everitt, B. S.(2004). A Handbook of Statistical analyses using SPSS.
2.Howitt, D. and Cramer, D.(2008). Introduction to SPSS.
3. Validity and Reliability of Students and Academic Staff’s Surveys to Improve Higher Education. Educational Alternatives, Journal of International Scientific Publications, Vol.14, pp. 242-263.
Regards,
Zuhair
Hi,
I think it is not a problem. You can interpret the Cronbach's Alpha data not as the test reliability, but as the respondent's score reliability. I will interpret that the respondents of your research give reliable, consistent answers.
Hope it helps.
Regards,
Garvin
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