FORMULA FOR CHI SQUARE

# FORMULA FOR CHI SQUARE - FORMULAFORCHISQUARE f fe)2 2 = o...

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FORMULA FOR CHI SQUARE = e e o f f f 2 2 ) ( χ f e = expected frequencies f o = observed frequencies f e = (column total)(row total) N OR f e = (% column total)x(row total) df = (r – 1)(c – 1) r = the number of rows c = the number of columns This table will vary in size Variable 1 Variable 2 Attribute Attribute Total Attribute f o f o Row total Attribute f o f o Row total Attribute f o f o Row total Total Column total Column tota N (Sample total) Table you create to calculate Chi Square, this will vary depending on the size of your crosstab (the table) Cell f o f e f o -f e (f o -f e ) 2 (f o -f e ) 2 /f e Upper left Upper right Middle left Middle right Lower left Lower right S U

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Once you have calculated X 2 by summing that final column, you need to calculate the degrees of freedom for the size of your original table, df = (r – 1)(c – 1) r = the number of rows c = the number of columns Use this value, and the value for
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FORMULA FOR CHI SQUARE - FORMULAFORCHISQUARE f fe)2 2 = o...

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