Examlex
Who was the Russian president after Boris Yeltsin?
Diffusion
The process by which an innovation is communicated through certain channels over time among the members of a social system.
Treatment Effect
The impact of a specific intervention or treatment in experimental research, measured by comparing outcomes between treated and control groups.
Experimental Research
A research method involving the manipulation of variables to test hypotheses and determine cause-and-effect relationships.
Selection Bias
A distortion of statistical analysis results due to the method of collecting samples, which might not be representative of the entire population.
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