Author Question: The nurse researcher is using an instrument that provides similar results each time it's ... (Read 29 times)

Awilson837 · **on:** Jul 23, 2018

The nurse researcher is using an instrument that provides similar results each time it's implemented. Which term should the researcher use to describe the quality of this instrument?

1. Validity
2. Reliability
3. Consistency
4. Variability

Question 2

The nurse has defined a research problem. What action should the nurse take next?

1. Formulate a hypothesis.
2. Define variables.
3. Review the literature.
4. Select a design.

mmj22343 · **Reply #1 on:** Jul 23, 2018

Answer to Question 1

Correct Answer: 2
Rationale 1: Validity is the degree to which an instrument measures what it is supposed to measure.
Rationale 2: Reliability is the degree of consistency with which an instrument measures a concept or variable. If it is reliable, repeated measurement of the same variable should yield similar or nearly similar results.
Rationale 3: Consistency is a component of reliability.
Rationale 4: Variability does not describe instrument measurement, but variances in data.

Answer to Question 2

Correct Answer: 3
Rationale: Before progressing with the research design, the researcher determines what is known and not known about the problem. A thorough review of the literature provides the foundation on which to build new knowledge. Next, a hypothesis is formulated, variables are defined, and the research design is selected.