Why should a nurse researcher be concerned about an instrument's degree of internal consistency?
A) The instrument is appropriate to use to measure a single concept.
B) The instrument has low measurement error and high error variance.
C) More refinement of the instrument is needed before it can be applied.
D) The instrument is valid, but the reliability has yet to be determined.

Question

Quizplus · Accepted Answer

Correct A: Internal consistency or homogeneity reliability indicates that the items within the scale measure the same concept.
Incorrect B: This is an inaccurate statement.
Incorrect C: A high degree of internal consistency indicates that the instrument is refined; however,additional testing is always warranted.
Incorrect D: There is no indication that the instrument is valid; the reliability coefficient is very acceptable.

Why Should a Nurse Researcher Be Concerned About an Instrument's