Lecture 4: Principles of Psychometrics: Reliability II - jhsph ocw
Lecture 4: Principles of Psychometrics: Reliability II - jhsph ocw
Lecture 4: Principles of Psychometrics: Reliability II - jhsph ocw
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Question 9<br />
For a ten-item scale with an average inter-item correlation <strong>of</strong><br />
.25, the reliability is .75. What about a twenty-item scale with<br />
the same average inter-item correlation? How about fifteen<br />
items? How about 5?