Chapter 5: Developing a Measurement Strategy. Scales of Measurement Reliability and Validity Modalities of Measurement Locating and Evaluating Measures. Reliability & Validity. Why is reliability important? Theory can’t do without it Constructs can’t be valid unless they are reliable
Xo= T+E (Observed score = True score + Error)
Randon v. systematic error
What kind of error is introduced when an applicant fakes on a personality measure? Other examples?
which should be convergent and which divergent?