Examlex
Which of the following is a vector quantity?
Simulated Mental Hospital
A controlled environment designed to mimic a psychiatric hospital for the purposes of training, research, or simulation exercises.
Schizophrenia
A serious mental illness marked by altered cognition, feelings, communication, self-identity, and actions.
Natural Experiments
Observational study designs where the researcher does not control the exposure but can study its effects due to external factors acting as an "experiment."
Internal Validity
The degree to which a study or experiment accurately demonstrates a causal relationship between the variables being tested, without the influence of external factors.
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