Posted: May 26th, 2017

Both Moghaddam and Benson introduce the terms reliability and validity. What would it mean to say that you had a bathroom scale that was extremely reliable but not valid?

Both Moghaddam and Benson introduce the terms reliability and validity.

1. What would it mean to say that you had a bathroom scale that was extremely reliable but not valid?
2. Could you have a scale that was valid but not reliable? Why or why not?
3. Moghaddam says that a laboratory study might have good reliability and good internal validity but still lack external validity. What does he mean by this?
4. Could the same be said for a survey or a case study? Explain