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KIN+3502+lecture+three

# KIN+3502+lecture+three - Lab This Week • • • •...

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Lab This Week Lab #3 Computer Lab Similar locations as last week See lab report for specific locations and times Lab sheet and data set are posted

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The Normal Curve
Standard Scores CAN’T ADD RAW SCORES Different measures on different scales i.e., fitness scores (# sit ups, inches, time) Provide a common unit of measurement across different tests Translate each score into a standard score THEN add scores together for a total measure

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Standard Scores: z-scores Mean of zero Standard deviation of one Formula: page 43 z = score-mean/standard deviation
Z above the Mean Mean = 12; SD = 4 What is the Z score for a raw score of 18? Z 18 = (18 – 12)/4= (6/4) = 1.50 18 is 1.50 standard deviations above the mean

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Z below the mean Mean = 12; SD = 4 What is the z score for a score of 9? Z 9 = (9-12)/4 = (-3/8) = -.75 9 is .75 sd below the mean
Standard Scores: T-scores Mean of 50 Standard deviation of 10 Formula: page 43 T=[10(score-mean)/standard deviation] + 50

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T above the mean T=[10(score-mean)/standard deviation] + 50 Mean = 12; SD = 4 What is the T score for 18? T 18 = [10 (18-12)/4 ] + 50 = [10 (1.5)] + 50 = 15 + 50 = 65 18 is 1.5 standard deviations above the mean
T below the mean T=[10(score-mean)/standard deviation] + 50 Mean = 12; SD = 4 What is the T score for 9?

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