Examlex
A wise researcher will not agree to do a research job for which no written proposal exists.
Reliability
The consistency and stability of measurements or assessments over time.
Validity
The degree to which a tool, test, or measure accurately represents or measures what it claims to.
Variability
The extent to which data points in a set differ from each other and from the average, indicating the spread or dispersion.
Reactivity
The tendency of participants to change their behavior due to the awareness of being observed or studied.
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