Examlex
Hydrocarbons release a lot of energy when ignited.Where does this energy ultimately come from?
Masked Design
A research design where the participants do not know which treatment group they are in to prevent bias; also known as blind design.
Placebo Effect
The phenomenon where an individual experiences a perceived improvement in condition or symptoms after receiving a treatment that has no therapeutic effect.
Placebo
An inactive substance or treatment used as a control in experiments to test the effectiveness of therapeutic drugs.
Control Condition
In experimental research, a standard against which the effects of a treatment are compared, often involving no treatment or a placebo.
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