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How did the labor movement launch a sustained assault on the understanding of freedom grounded in Social Darwinism and in the liberty of contract?
Stimulants
Substances that increase alertness, attention, and energy by elevating the heart rate, blood pressure, and respiration.
Double-Blind Procedure
An experimental procedure in which neither the participants nor the experimenters know who is receiving a particular treatment, used to prevent bias in research results.
Placebo
An inert or non-active treatment given to a participant in an experiment, used to measure the effect of the treatment being tested.
Barbiturates
A class of drugs that act as central nervous system depressants, often used for their sedative and hypnotic properties.
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