Professional > Table scripting > Statistical tests
 
Statistical tests
UNICOM Intelligence Professional provides a number of statistical tests that you can run on tables. You can use these tests to show whether differences in the distribution of counts in tables are statistically significant or whether they are merely due to chance. The following table lists the statistical tests that are available. Each test has some requirements regarding the structure and contents of the tables on which it can be performed.
Name
Description
This test looks at the variables on the side and the top of a table and tests whether they are independent. For example, it can be used to show whether or not variations in political opinions depend on the respondent's age.
This test looks at each table cell and tests whether it is significantly different from its expected value in the overall table.
This test looks at the rows of a table independently and compares pairs of columns, testing whether the proportion of respondents in one column is significantly different from the proportion in the other column. The proportion is the count in the cell divided by the base for the column.
This test looks at means that are presented in a row of a table and compares pairs of columns, testing whether the mean in one column is significantly different from the mean in the other column.
 
This test looks at the variables on the side and top of a table with two rows and two columns and tests whether they are independent. It is suitable for use in a subset of the tables for which the chi-square test is available.
 
This test deals with each row independently and compares the proportions in four columns at a time to test whether the difference between the values in the first pair of columns is significantly different from the difference between the values in the second pair of columns.
 
This test deals with each column independently and compares pairs of rows to see whether the figures in each pair differ significantly from one another.
 
This is not a separate statistical test in its own right; instead, it applies the column proportions or column means test to a combination of variables that you select, to provide a detailed breakdown of results by combinations of individual categories within the selected variables.
This test compares the means of two variables, computes the difference between the two variables for each case, and tests to see if the average difference is significantly different from zero.
This test tests the significance of unplanned pairwise comparisons.
See also
Statistics properties
Requesting statistical tests
Diagnostics information
p values
Weighted data
Overlapping data
Hierarchical data
Selecting columns to test
Setting the significance levels
Minimum base and small base values in statistical tests
Statistical tests compared to IBM SPSS Statistics
Statistical tests compared to Quantum and Quanvert
Table scripting