Examlex
Which metric prefix means 1 × 10-9?
Research
The systematic investigation into and study of materials, sources, etc., in order to establish facts and reach new conclusions.
Placebo Effect
A beneficial effect produced by a placebo drug or treatment, which cannot be attributed to the properties of the placebo itself, and must therefore be due to the patient's belief in the treatment.
Naturalistic Observation
A research method in which subjects are observed in their natural environment without any manipulation by the observer.
Field
A specific area of study or professional practice within a broader discipline, characterized by a unique set of theories, research methods, and applications.
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