Experiment Vocab

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Bias

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Occurs when one outcome is favored over another, leading to skewed results in an experiment.

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Experimental Group

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The group to which treatment or placebos are applied in an experiment.

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Placebo

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An unmedicated treatment made to look like the real treatment, used to compare against the actual treatment.

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Sampling Error

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Error that always occurs when the sample is observed instead of the whole population, leading to inaccurate results.

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Control Group

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The group which no treatment is applied and is used for comparison in an experiment.

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Confounding Variable

Back

A variable that influences both the dependent variable and independent variable, leading to a false association.

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Blinding

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A technique used in experiments to prevent bias, where participants do not know whether they are receiving the treatment or placebo.

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Census

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A survey that attempts to collect data from every member of a population.

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Randomization

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The process of randomly assigning participants to different groups to eliminate bias.

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Double-Blind Study

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An experimental procedure in which both the participants and the researchers do not know who is receiving the treatment.