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Adding or subtracting 0.5 from the binomial random variable x's interval endpoints (i.e., the so-called continuity correction) improves the normal approximation to the binomial by correcting for or accounting for the "missing" corners of the probability rectangles corresponding to values of x.
Systematic Errors
Errors that are consistently reproducible and can be traced to a flaw in the measurement system, often affecting the accuracy of an experiment or study.
Bias
A tendency or prejudice towards or against something or someone in a way that is considered to be unfair, affecting impartial judgment.
Pilot Testing
An initial small-scale implementation used to test and refine a project, study, or product before full scale execution or launch.
Internal Consistency
Internal consistency is a measure of the reliability of a test or scale; it assesses the extent to which all parts or items of a survey measure the same concept or construct and therefore reflects the interrelatedness of the items within the test.
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