Examlex
Discuss the biological exchange between the Old and New Worlds.Examine how plants,animals,and disease shaped both the Old and New Worlds.
Dependent Variable
The variable that is the subject’s response to, and dependent on, the level of the manipulated independent variable.
Internal Validity
The extent to which a study accurately demonstrates a cause-effect relationship by controlling for extraneous variables and bias.
Control Group
In an experiment, the group that does not receive the treatment or intervention being tested, serving as a benchmark for comparison.
Expectancy Effects
Phenomena in which the outcome of a study is influenced by the participants' or experimenters' expectations.
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