Examlex
Explain the concepts of thermal expansion and contraction.
Population
The total number of individuals of a species living in a particular area or environment, considered together as a group for study in various sciences.
Biased Sample
A sample that does not accurately represent the population from which it was drawn, due to systematic exclusion of some part of the population.
Double-Blind Control
An experimental setup where neither the participants nor the experimenters know who is receiving a particular treatment, minimizing bias.
Experimenter Bias
A method in which researchers involved in the study affect the outcomes to reflect a specific result.
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