Scientific Method and Experimental Design

A hypothesis is a testable statement that predicts the relationship between variables, often formulated as an 'if-then' statement.

The purpose of a control variable is to keep the conditions the same so we know how the independent variable (IV) affects the dependent variable (DV).

The dependent variable is the outcome or response that is measured in an experiment, which is affected by changes in the independent variable.

The independent variable is the factor that is manipulated or changed in an experiment to observe its effect on the dependent variable.

An experimental group is a set of subjects that are exposed to the independent variable in an experiment.

A control group is a set of subjects that are not exposed to the independent variable and are used as a benchmark to measure how the other group performs.

The scientific method is a systematic process for investigating phenomena, acquiring new knowledge, or correcting and integrating previous knowledge.

A testable question is a question that can be answered through experimentation and observation.

Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements and can be counted or measured.

A variable is any factor, trait, or condition that can exist in differing amounts or types in an experiment.