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What are cosmic rays?
Descriptive Methods
Methods that yield descriptions of behavior but not necessarily causal explanations.
Experimental Methods
Techniques and procedures used in science to study and manipulate variables to establish cause-and-effect relationships.
Blind Studies
Research designs in which the participants do not know whether they are receiving the experimental treatment or a placebo.
Significance Tests
Statistical tests that show how likely it is that a study’s results occurred merely by chance.
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