Error
Measurements
Statistics
Study Design
Review
100

The rejection of a null hypothesis that is actually true

What is Type I Error

100

The difference between what really exists and what is measured in a study

What is Measurement Error?

100

Procedures that combine mathematical processes and logic to test hypotheses about a population with the help of sample data.

What is Inferential Statistics?

100

Paper-and-pencil instruments designed to gather data from individuals about knowledge, attitudes, beliefs, and feelings

What is Questionnaire?

100

The systematic use of data to monitor the outcomes of care processes, as well as the use of improvement methods to design and test changes in practice for the purpose of continuously improving the quality and safety of health care systems

What is Quality Improvement?

200

The tendency for statistics to fluctuate from one sample to another

What is Sampling Error
200

Level used to classify objects or events into categories without any relative ranking (e.g., gender, hair color)

What are Nominal Measurements?

200

Statistical methods used to describe and summarize sample data.

What are Descriptive Statistics?

200

A type of interview where the researcher directly asks study participants questions with the intent of utilizing the responses in the study.

What is a Self-Report Questionnaire?

200

A method that scientifically describes cultural groups. The goal is to understand the native’s view of their world.

What is Ethnographic?

300

This type of error occurs when scores vary in a random way.

What is Random Error?

300

A descriptive statistical procedure that describes the average member of a sample (mean, median, and mode)

What are Measures of Central Tendency?

300

Quantifies the uncertainty of a statistic or the probable value range within which a population parameter is expected to lie.

What is Confidence Interval?

300

The phenomenon where the study participants change behavior because they know they are being observed.

What is Reactivity?

300

Steps in qualitative research to ensure accuracy, validity, or soundness of data.

What is Credibility?

400

This type of error occurs when scores are all incorrect in the same direction

What is Systematic Error?

400

Level used to show rankings of events or objects; numbers are not equidistant, and zero is arbitrary (e.g., class ranking)

What is an Ordinal Measurement?

400

The degree of association between two variables

What is Correlation?

400

A study in which the relationship between two or more variables is examined.

What is a Correlation Study?
400

A small, simple study conducted as a prelude to a larger-scale study that is often called the “parent study.”

What is a Pilot Study?

500
The acceptance of a null hypothesis that is actually false

What is Type II error?

500

The process of assigning numbers to variables or events according to rules

What is Measurement?

500

A statistic that tests whether group means differ from each other, rather than testing each pair of means separately. It considers the variation among all groups.

What is ANOVA?

500

A study type that examines data at one point in time.

What is a Cross-Sectional Study?
500

Variable that interferes with the operations of the phenomena being studied.

What is an Extraneous Variable?

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