SOCIOL 2Z03 Lecture Notes - Lecture 18: Empirical Relationship, X&Y, Univariate Analysis
9 Apr 2014
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Lecture outline: quantitative data, univariate analysis, bivariate analysis, multivariate analysis. Quantitative data: numerical representation: age, 1=1, 2=2, 3=3, 4=4, 5=5, etc, sex, male=1, female=2 (female could be one and male could be 2:doesn"t matter) Fox 2 lecture 18: political affiliation, liberal=1, conservative=2, ndp=3, other=4, civil unrest, low=1, medium=2, high=3. Univariate analysis: frequency distributions: chart: univariate analysis can"t always . problem (missed it, 2 solutions, recode variable into smaller number of categories (total household income, graph (histograms=show clusters, histograms will typically take one of 3 shapes (skewness) Normal curve (shape 1): doesn"t occur a lot with the type of variables we"re looking at. 2 main questions: central tendency: what is typical/normal, mode, median and mean, variability/dispersion: what is atypical/different? (what countries have different life expectancy values?, percentages, range, standard deviation. Univariate analysis: mode: most frequently occurring value, least useful measure of central tendency (handout: main source of stress in peoples life: nominal level variable: mode/value that occurs the most is work)
