A newly developed instrument is found to have a Cronbach's alpha of 0.82. The nurse researcher interprets this to mean what?
a. The instrument has no internal consistency.
b. The instrument has a low degree of internal consistency.
c. The instrument has a moderate degree of internal consistency.
d. The instrument has a relatively high degree of internal consistency.
ANS: D
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A This is not an accurate interpretation of the example.
B The example evidences a high degree of internal consistency.
C The example evidences a high degree of internal consistency.
D Alphas above 0.70 provide very good or relatively high evidence for supporting the internal consistency of the instrument.
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