Examlex
Economists focus on "unlimited human wants" rather than _____ to describe our pursuit of goods and services.
Matched Control Group
A group of subjects that is equivalent to the experimental group in key characteristics but does not receive the experimental treatment or intervention.
Error Variance
The portion of variation in a set of observations that arises from random factors as opposed to systematic influences.
Imperfect Matching
A scenario in research where participants in different groups or conditions are not perfectly comparable due to varying characteristics that may affect the outcome.
Crossover Design
A research method where participants receive more than one treatment in a specific order, allowing comparison of different interventions within the same group.
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