Asked by Rebecca Shumate on Jul 03, 2024
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A hallmark of a true experimental design is the random assignment of participants to various treatment conditions, allowing a researcher to control many of the threats to internal validity.
True Experimental Design
Research design involving random assignment of participants to conditions and manipulation of an independent variable to determine its effect on a dependent variable.
Random Assignment
A method used in experimental designs to allocate participants to different groups in a study, ensuring each has an equal chance of being assigned to any group.
Internal Validity
The extent to which a study can demonstrate that a causal relationship exists between variables, without being influenced by external factors.
- Recognize the importance of random assignment in experimental designs to control threats to internal validity.
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Learning Objectives
- Recognize the importance of random assignment in experimental designs to control threats to internal validity.
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