Examlex
Nonresponse bias occurs when those responding to a survey or poll differ systematically from the nonrespondents.
SSE
Sum of Squared Errors, a measure of the discrepancy between the data and an estimation model, representing the error between observed and predicted values.
Treatments
In experimental research, the conditions applied to different groups of participants to observe potential changes in behavior or outcomes.
Factor
An element or constituent that contributes to a result or outcome.
Population Means
The average value of a characteristic in a population, and a parameter that is often estimated from sample data.
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