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The part of an experiment that responds to another change and is measured, counted, or observed.

The group in an experiment that does not receive treatment and is then used as a basis for comparison.

A testable educated guess.

Data that is numerical in nature including measurements or counts.

The part of an experiment that is intentionally changed by the experimenter in an effort to cause change in something else.

Data that is descriptive in nature to include observations.

The part of an experiment that is the same for each experimental group in an effort to make sure that there is only one independent variable.

Constant

Qualitative

Quantitative

The Independent Variable

Hypothesis

Control

The Dependent Variable