# RES Class Test 5 definitions.docx - RES Class Test 5:...

• 5

Course Hero uses AI to attempt to automatically extract content from documents to surface to you and others so you can study better, e.g., in search results, to enrich docs, and more. This preview shows page 1 - 2 out of 5 pages.

RES Class Test 5: Chapter 14 and 15Chapter 14: Summarizing Research Data-Descriptive Statistics1.Descriptive statistics: The type of statistical analysis focused ondescribing, summarizing, or explaining a set of data.2.Inferential statistics: The type of statistical analysis focused onmaking inferences about populations based on sample data.3.Data set: A set of data where the rows are “cases” and the columnsare “variables”.4.Frequency distribution: Data arrangement in which the frequenciesof each unique data value is shown.5.Bar graph: Graph that uses vertical bars to represent the datavalues of a categorical variable.6.Histogram: Graph depicting frequencies and distribution of aquantitative variable.7.Line graph: A graph relying on the drawing of one or more linesconnecting data points.8.Scatterplot: A graphical depiction of the relationship between twoquantitative variables.9.Measure of central tendency: Numerical value expressing what istypical of the values of a quantitative variable.10.Mode: The most frequently occurring number.11.Median: The centre point in an ordered set of numbers.12.Mean: The arithmetic average.13.Measure of variability: Numerical value expressing how spreadout or how much variation is present in the values of a quantitativevariable.14.Range: The highest number minus the lowest number.15.Variance: The average deviation of data values from theirmean in squared units.16.Standard deviation: The square root of the variance.17.Normal distribution: A theoretical distribution that follows the68, 95, 99.7 percent rule.18.68, 95, 99.7 percent rule: Rule stating percentage of casesfalling within 1, 2 and 3 standard deviations from the mean on anormal distribution.19.Z score: A score that has been transformed into standarddeviation units.20.Unstandardized difference between means: The differencebetween two means in the variables’ natural units.21.Cohen’s d: The difference between two means in standarddeviation units.

Course Hero member to access this document

Course Hero member to access this document

End of preview. Want to read all 5 pages?

Course Hero member to access this document

Term
Fall
Professor
NoProfessor