Information Systems Success Model (DeLone & McLean)
Information SystemsReliability: alphas 0.78–0.914 sample items
About this scale
A multi-item measure operationalizing the DeLone & McLean IS success model: information quality, system quality, service quality, use, user satisfaction, and net benefits.
Sample item(s)
“The system provides me with accurate information (information quality)”
“The system is easy to use (system quality)”
“The IS support team is responsive (service quality)”
“I am satisfied with the system (user satisfaction)”
Reliability
Reported internal consistency: alphas 0.78–0.91. As a rule of thumb, Cronbach’s α ≥ .70 is considered acceptable, ≥ .80 good, and ≥ .90 excellent for established measures.
Notes
Foundational IS-success framework.
Source & citation
DeLone, W. H., & McLean, E. R. (2003): The DeLone and McLean model of information systems success: A ten-year update. Journal of Management Information Systems, Vol. 19, No. 4, pp. 9–30.
Source. Scale details are summarised from the publication cited above. Always consult the original source for the full item set, scoring, and permission to use.
Use it in your research
Need to check the reliability or psychometrics of this scale in your own data? Use the free DrAIStudio research tools:
Cronbach’s alpha calculator
All statistical calculators
Search the full Scale Atlas
Academic writing humanizer