Examlex
According to your text the most important type of validity is _____________validity.
Independent Variable
The variable in an experiment that is manipulated or changed by the researcher to observe its effects.
Room Lighting
The arrangement or type of lights used in a room to enhance visibility and create a desired atmosphere.
Random Assignment
A process used in experimental design to assign subjects randomly to either the control or experimental group, ensuring each participant has an equal chance of being placed in any group.
Double-Blind Procedure
An experimental technique where neither the participants nor the experimenters know who is receiving a particular treatment, used to prevent bias in research results.
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