Nurse Executive Test Research & Evidence-Based Practice 4

Question 1

A nurse executive is leading a quality improvement (QI) project. How does QI differ MOST fundamentally from nursing research?

Accepted Answer

QI aims to improve local processes; research aims to generate generalizable knowledge

Answer

QI projects focus on improving performance within a specific setting, while research is designed to produce generalizable new knowledge.

Question 2

Which type of sampling method gives every member of a population an equal chance of being selected and produces the MOST generalizable results?

Accepted Answer

Simple random sampling

Answer

Simple random sampling minimizes selection bias by giving each population member an equal probability of inclusion, maximizing generalizability.

Question 3

A nurse executive reviews a study that found a strong correlation (r = 0.85) between nurse staffing ratios and patient fall rates. What conclusion is MOST appropriate?

Accepted Answer

There is a strong positive association, but causation cannot be inferred from correlation alone

Answer

Correlation indicates the strength and direction of a relationship but does not establish causation; r = 0.85 means r² = 0.72, not 0.85, of variance explained.

Question 4

When conducting a focus group to explore nurse perceptions of a new EHR system, which sampling approach is MOST appropriate?

Accepted Answer

Purposive sampling to include varied roles and experience levels

Answer

Purposive sampling ensures that participants are selected intentionally to represent diverse perspectives relevant to the research question.

Question 5

A nurse executive is reviewing a new guideline and notes the recommendation is rated 'Grade B.' This MOST likely means:

Accepted Answer

Evidence supports the recommendation but is not derived from the highest-quality studies

Answer

Grade B recommendations are generally based on good but not the highest-level evidence, such as well-designed non-randomized studies or consistent observational data.

Nurse Executive Test Practice Test

Nurse Executive Test Practice Test

Nurse Executive Test Research & Evidence-Based Practice 4