Why are reliability and validity threats to the accuracy of measures? In your answer please define both terms.
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Q15: _ is a type of measurement error
Q16: A _ score is calculated from the
Q17: Which type of validity is demonstrated when
Q18: _ tests validity by relying on the
Q19: A(n) _ variable has only two categories.
Q21: What is the difference between a Likert
Q22: Generally speaking, political scientists prefer more precision
Q23: What does the level of measurement tell
Q24: Please identify and define the four levels
Q25: Please define a summation index and give
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