Based on the review, does the following reliability evidence support a decision to use the instrument? What kind of relationship does the coefficient represent and What kind of relationship do you expect (high, medium, low? Positive or negative?)

Here is the reliability evidence:

• Internal consistency: analysis of internal consistency yielded a Cronbach's alpha of .92 for the clinical sample and .93 for the nonclinical sample
• Test-retest reliability: test-retest reliability as assessed over a one-week interval among a subsample of 26 outpatients from one clinic site (r = .93)

***A couple of tips:

• When evaluating reliability evidence, we are only evaluating how consistent the scores are. We can't assess validity yet - that will come next.
• Each coefficient represents the relationship between sets of scores (i.e., the internal consistency coefficient is an indicator of the strength of the relationship between the scores on individual items to one another). Therefore, to start, evaluate each coefficient in isolation.