Which of the following is true about the validity of a measure?
A) Characteristics of the sample may affect the validity of a tool for use in a particular study.
B) Once validity is established, it need not be examined before using the tool in future applications.
C) Physiological measures are objective and accurate and do not need to be examined for any type of validity.
D) Use of a tool in many studies indicates it is a valid instrument for nursing research.

Question

Quizplus · Accepted Answer

Validity will vary from one sample to another and from one situation to another. An instrument may be very valid in one situation, but not valid in another.
Validity of a given measure is related to the needs of the study. An instrument may be very valid in one situation, but not valid in another.
Validity will vary from one sample to another and from one situation to another. An instrument may be very valid in one situation, but not valid in another.
The validity of a tool or instrument is dependent on the needs of the study. Validity will vary from one sample to another and from one situation to another. An instrument may be very valid in one situation, but not valid in another.

Which of the Following Is True About the Validity of a Measure