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Unformatted text preview: -Ex: Olympic medal winners (Gold, silver, bronze)-Interval:-Variable is measured with successive points on a scale with equal intervals-Example measure on immigration policy opinion: The US should build a fence along the border Strongly oppose 1 2 3 4 5 Strongly favor Strongly oppose -2 -1 0 +1 +2 Strongly favor-Ratio:-Interval measurement with a true, meaningful zero point-Ex: time in seconds, weight in lbs, etc.-Ex: test scores (if from 0 possible) Interval and ratio measures are continuous variables Measures Should:-Capture variation!-Use continuous variables where possible-Address the specific variables in the Hypothesis/research question-Minimize order effects (answering one question first affects other questions)-Minimize potential social desirability effects-(Self-report) people report what they desire to be, rather than what they really do....
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- Spring '09