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Unformatted text preview: of standard deviation a score is above or below the mean.-Formula to change a raw score to a Z score: o Test 92 o Mean 78, SD=10 o Z=(X-M)/SD -Sign of the Z score indicates whether it is above or below the mean. o Positive Z score is above the mean o Negative Z score is below the mean-Numeric value of the Z score indicates how many standard deviation units it is away from the mean-The normal curve table o Gives the precise percentage of scores between the mean and any other Z score o Table lists positive Z scores...
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- Spring '08