SOCI 211 Chapter 15: SOCI 211 - Chapter 15 - Quantitative Data Analysis.docx
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Univariate analysis: the analysis of a single variable, for purposes of description: ex: frequency distributions, avgs, & measures of dispersion. The most basic format 4 presenting univariate data one-way distribution. Frequency distribution: a description of the # of times that the various attributes of a variable are observed in a sample: ex: the report that 53% of a sample were men & 47% were women. Average: an ambiguous term generally suggesting typical or normal a central tendency: the mean, median & more are specific examples of math averages. Which measure of central tendency you choose to report depends on the nature of your data & the goal of your analysis. Dispersion: the distribution of values around some central value, such as an average: the simplest measure of dispersion is the range, a more sophisticated measure is the standard deviation. Standard deviation: a measure of dispersion around the mean, calculated so that approx.
