In tables or graphs, you can summarize the frequency of every possible value of a variable in numbers or percentages. Frequency distributionĪ data set is made up of a distribution of values, or scores. Now you can use descriptive statistics to find out the overall frequency of each activity (distribution), the averages for each activity (central tendency), and the spread of responses for each activity (variability). Your data set is the collection of responses to the survey. You distribute a survey and ask participants how many times they did each of the following in the past year: Research exampleYou want to study the popularity of different leisure activities by gender. You can apply these to assess only one variable at a time, in univariate analysis, or to compare two or more, in bivariate and multivariate analysis. The variabilityor dispersion concerns how spread out the values are.The central tendencyconcerns the averages of the values.The distribution concerns the frequency of each value.There are 3 main types of descriptive statistics: Frequently asked questions about descriptive statistics.Probability vs non-probability sampling.
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