Examlex
Which item is NOT included in gross private domestic investment?
Observational Methods
Research techniques that involve observing subjects in their natural environment without manipulation.
Experiment
A scientific procedure undertaken to make a discovery, test a hypothesis, or demonstrate a known fact through controlled conditions.
Experiment
A procedure carried out to support or refute a hypothesis, often involving the manipulation of variables to observe the effect on some behavior or condition.
Deliberately Exposing
Intentionally subjecting subjects (in an experiment) or oneself to certain conditions or stimuli to observe the effects.
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