Asked by Hayden Couvillon on Sep 23, 2024
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Experimenters rule out the possible biasing effects of extraneous variables by using two basic types of control: random assignment of participants and experimental control.
Experimental Control
A component of scientific experiments where variables are kept constant to accurately assess the effect of the independent variable on the dependent variable.
Random Assignment
A method used in experiments to distribute participants randomly across various groups to ensure each group is similar at the start of the experiment.
Extraneous Variables
Variables other than the independent variable that may affect the outcome of an experiment, potentially confounding the results if not controlled.
- Comprehend the significance of regulating variables such as age in studies to preserve internal validity.
- Discern between independent and dependent variables in the framework of an experimental design.
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Learning Objectives
- Comprehend the significance of regulating variables such as age in studies to preserve internal validity.
- Discern between independent and dependent variables in the framework of an experimental design.
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