A nurse evaluates the results of two different studies examining the relationship between time of day and sundowning in the geriatric setting. After 1 month, the nurse realizes that there is a difference of 1 hour in the instruments used for measurement. What conclusion can be drawn about the type of threat this causes the study?
A) Validity
B) Reliability
C) Causality
D) Truthfulness

Question

Quizplus · Accepted Answer

Reliability refers to measuring the instrument by asking how trustworthy it is at gathering the intended data. Validity measures the degree to which an instrument is measuring what it is supposed to measure. Causality and truthfulness are not criteria researchers use to determine whether research instruments give accurate results.

A Nurse Evaluates the Results of Two Different Studies Examining