January 25, 2008

# January 25, 2008 - 2. Sensitive to each score 3. Stable...

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January 25 Outline I. Median (continued) A. Properties 1. Less sensitive than mean to extreme scores 2. More subject than mean to sampling variation II. Mode A. “Computation” B. Properties 1. Not sensitive to extreme scores 2. Most subject to sampling variation III. Central tendency and symmetry IV. Variability overview V. Range VI. Standard deviation A. Deviation equations s = 1 - N SS = ( 29 2 1 - - N X X (sample)

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σ = N SS pop = ( 29 2 N X - μ (population) B. Raw score equation for SS SS = 2 X - ( 29 2 N X C. Properties 1. Measures dispersion relative to mean
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Unformatted text preview: 2. Sensitive to each score 3. Stable with repeated samples 4. Can be manipulated algebraically VII. Variance s 2 = 1-N SS (sample) 2 = N SS pop (population) Mode: the most frequent score in a distribution Range: the highest score minus the lowest score in a distribution Standard deviation: a measure of the average distance of the scores in a distribution from the mean of the distribution Variance: the square of the standard deviation...
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## This note was uploaded on 04/17/2008 for the course PSYC 241 taught by Professor Jamesantes during the Spring '08 term at North Dakota.

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January 25, 2008 - 2. Sensitive to each score 3. Stable...

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