A group of researchers developing an instrument performed a test-retest on the instrument with an interval of 5 days. This testing resulted in a correlation coefficient of 0.38. The nurse researcher interprets this as being indicative of what?
a. Instrument is stable; high reliability
b. Instrument is stable; low reliability
c. Instrument is unstable; high reliability
d. Instrument is unstable; low reliability
ANS: D
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A The low correlation coefficient reveals an unstable instrument and low reliability.
B The low correlation coefficient reveals an unstable instrument and low reliability.
C The low correlation coefficient reveals an unstable instrument and low reliability.
D The low correlation coefficient reveals an unstable instrument and low reliability.
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Palpation, one of the four components of musculoskeletal examination, is used to assess
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