Ready to Review?
This website on measurement, from Columbia University, is part of their QMSS e-Lessons project.
Learning More About Validity and Reliability
On the surface, validity and reliability are simple concepts. Designing and conducting a research study and dealing directly with issues of validity and reliability are probably the best methods for understanding them. In the meantime, check out this site developed by William Trochim, Professor of Policy Analysis and Management at Cornell University.
Reliability Between Coders
Check out John Uebersax’s website on Kappa on Cohen’s Kappa--very detailed.