Examlex
According to Milton Friedman, any divergence in unemployment from its natural rate is
Temporary because
Hawthorne Effect
The effect that researchers themselves may have on an experimental group. The effect is named after an organizational study in which employees were found to be responding to the perceived interest of management rather than to the experimental condition itself.
External Validity
The extent to which the results of a study can be generalized to other situations, populations, or time periods beyond the study itself.
Diffusion
In experimental design, the problem of a treatment effect spreading from group to group as people communicate.
Treatment Effect
The difference in outcomes between a group receiving an intervention and a control group in an experimental study.
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