Informatics Nurse Test Nursing Informatics Data Analytics and Outcomes 2

Question 1

A type II error in clinical research means:

Accepted Answer

Failing to detect a true difference that actually exists (false negative)

Answer

A Type II error (beta error) is a false negative — the study fails to detect a real effect, often due to insufficient sample size.

Question 2

In clinical data analytics, 'data normalization' refers to:

Accepted Answer

Restructuring data to eliminate redundancy and ensure consistent formatting

Answer

Normalization organizes data to reduce redundancy and ensure that fields are structured consistently, improving data integrity and query performance.

Question 3

Which statistical measure describes the spread of patient outcome data around the mean?

Accepted Answer

Standard deviation

Answer

Standard deviation quantifies the average dispersion of data points around the mean, indicating how much patient outcomes vary from the average.

Question 4

A nursing informatics team is using regression analysis on EHR data. The PRIMARY use of this analysis is to:

Accepted Answer

Identify relationships between variables and predict outcomes

Answer

Regression analysis models the relationship between predictor variables and an outcome, enabling prediction and identification of contributing factors.

Question 5

The concept of 'data provenance' in nursing informatics refers to:

Accepted Answer

The documented origin, history, and chain of custody of data

Answer

Data provenance tracks where data originated, how it was collected, and how it has been transformed, ensuring traceability and trustworthiness.

Informatics Nurse Test Practice Test

Informatics Nurse Test Practice Test

Informatics Nurse Test Nursing Informatics Data Analytics and Outcomes 2