The researcher asks another nurse to use a study instrument to score a questionnaire completed by study participants. The researcher has previously used the instrument to score the questionnaire and will compare the two results
Which type of reliability is this researcher trying to establish? 1. Internal consistency.
2. Stability.
3. Homogeneity.
4. Equivalence.
4
Rationale 1: Internal consistency measures the extent to which all items on an instrument measure the same variable.
Rationale 2: Stability measures the consistency of a measurement over time.
Rationale 3: Homogeneity measures the degree to which sub-parts of an instrument are consistent.
Rationale 4: This scenario describes interrater or interobserver reliability. Equivalence reliability is established by the comparison of two observers measuring the same event for equivalence.
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