Examlex
According to the PET scan study comparing dopamine brain receptors in obese and normal weight individuals, obese people may engage in compulsive or binge eating to stimulate brain dopamine pathways and pleasurable sensations.
Pretest-Posttest Nonequivalent Groups Design
A quasi-experimental research design where one group is tested before and after an intervention and compared to a control group not receiving the intervention.
Interpretable Nonequivalent Groups Design
A research design involving comparison between groups that are not randomly assigned but are compared on outcomes to assess treatment effects.
History
A field of study concerned with the analysis and interpretation of past events.
Internal Validity
The extent to which a study can establish a cause-and-effect relationship free from external influences or confounding variables.
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