UNIT 3 VOCABULARY Definitions

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Define quantitative data.

Back

Numerical data that can be counted, measured or computed. (ex.: number of siblings, miles...)

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What is an Alternative Hypothesis (H₁)?

Back

A statement that proposes that something is different, incorrect or has changed from what is accepted or claimed.

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What is informed consent?

Back

The process of agreeing to allow something to happen with a full understanding of all relevant facts, including risks, and available alternatives.

Front

Define observational study.

Back

Research in which data is collected by observation or survey about some characteristic of the population.

Front

What is a population in research?

Back

The entire collection of items or subjects that are the focus of concern in the study.

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Define qualitative data.

Back

Data that cannot be measured or counted. (ex.: feelings, opinions)

Front

What is a Null Hypothesis (H₀)?

Back

A statement that proposes no difference or effect, serving as a default or starting assumption.

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What is a control variable?

Back

A variable that is kept constant to accurately assess the relationship between other variables.

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Define dependent variable.

Back

The variable that is measured or observed in an experiment, affected by the independent variable.

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What is a sample in research?

Back

A subset of the population selected for observation and analysis.