Examlex
Unpolarized light of intensity I0 passes through two sheets of ideal polarizing material.If the transmitted intensity is 0.375I0,what is the angle between the polarizers?
Spurious Relationships
An apparent but false relationship between two variables that is actually caused by a third variable.
Selection Bias
A distortion in the analysis resulting from the method of collection of data, where the sample is not representative of the population being studied.
Experimental Groups
Groups in an experiment that receive the treatment or intervention being tested.
External Validity
The extent to which the results of a study can be generalized to other situations and to other people.
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