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# lec_presentation - G roup St at ist ics Feminism Index...

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Unformatted text preview: G roup St at ist ics Feminism Index Sex (0=male) male female N 14 16 Mean 20.0000 24.4375 Std. Deviation 5.24771 4.96614 Std. Error Mean 1.40251 1.24153 Table 6a: Mean Levels of Feminism, By Gender Table 6a: ______________________________________________________ Mean Standard Deviation N Male 20.00 5.25 14 Female 24.43 4.97 16 Difference 4.43* ________________________________________________________ Source: Survey administered to convenience sample of students at Rutgers University, 11/08 Mean level of feminism is an index based on five­category ordinal responses to 5 close­ended questions intended to capture feminism. Higher index values correspond to a greater feminist attitude. * p<= 0.05 Guidelines for constructing tables Guidelines for constructing tables • • • • • Table title should be informative Data clearly presented Clearly indicate all attributes of the table In note to table, clearly identify the source If missing data, info should be included in table O pen * Sex (0= male) Crosst abulat ion Count Open Total neutral no yes Sex (0=male) male female 4 2 6 2 4 12 14 16 Total 6 8 16 30 Anatomy of a contingency table Anatomy of a contingency table • Make the dependent variable the row variable and the • • • • independent variable as the column variable Marginal Frequency: numbers along the right margin and bottom margins Number in lower right­hand corner is N, the total sample size Cell frequencies = number of cases with each possible combination of two characteristics With 3 rows and 2 columns, the table is referred to as a 3X2 table. Table 6b: Percentage distribution of responses to open­ended survey Table 6b: Percentage distribution of responses to open­ended survey question “Do you consider yourself a feminist?”, by gender ________________________________________________________ __ Male Female Total No 28.6% 12.5% 20.0% Neutral 42.8% 12.5% 26.7% Yes 28.6% 75.0% 53.3% Total 100% 100% 100% N 14 16 30 ________________________________________________________ __ Chi­square = 6.56, p < 0.05 Source: Survey administered to convenience sample of students at Rutgers University, 11/08 How to calculate percentage How to calculate percentage distributions • Compute percentages in the direction of the independent • • variable (based on the categories of the independent variable). Make comparisons in the opposite direction from the way the percentages are run. Results indicate clearly that women are more likely to view themselves as a feminist – 75% of females answered yes to the question compared to just 28.6% of males. Males were more likely to give a neutral or negative response to the question (71.4%) compared to females (25%). P­value is < 0.05 – a statistically significant result. ...
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