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## 15 Statistics

This chapter documents the statistical procedures that PSPP supports so far.

• DESCRIPTIVES |  | Descriptive statistics.
• FREQUENCIES |  | Frequency tables.
• EXAMINE |  | Testing data for normality.
• GRAPH |  | Plot data.
• CORRELATIONS |  | Correlation tables.
• CROSSTABS |  | Crosstabulation tables.
• FACTOR |  | Factor analysis and Principal Components analysis.
• GLM |  | Univariate Linear Models.
• LOGISTIC REGRESSION |  | Bivariate Logistic Regression.
• MEANS |  | Average values and other statistics.
• NPAR TESTS |  | Nonparametric tests.
• T-TEST |  | Test hypotheses about means.
• ONEWAY |  | One way analysis of variance.
• QUICK CLUSTER |  | K-Means clustering.
• RANK |  | Compute rank scores.
• REGRESSION |  | Linear regression.
• RELIABILITY |  | Reliability analysis.
• ROC |  | Receiver Operating Characteristic.