Complex Samples Frequencies Statistics

Cells. This group allows you to request estimates of the cell population sizes and table percentages.

Statistics. This group produces statistics associated with the population size or table percentage.

• Standard error. The standard error of the estimate.
• Confidence interval. A confidence interval for the estimate, using the specified level.
• Coefficient of variation. The ratio of the standard error of the estimate to the estimate.
• Unweighted count. The number of units used to compute the estimate.
• Design effect. The ratio of the variance of the estimate to the variance obtained by assuming that the sample is a simple random sample. This is a measure of the effect of specifying a complex design, where values further from 1 indicate greater effects.
• Square root of design effect. This is a measure of the effect of specifying a complex design, where values further from 1 indicate greater effects.
• Cumulative values. The cumulative estimate through each value of the variable.

Test of equal cell proportions. This produces chi-square and likelihood-ratio tests of the hypothesis that the categories of a variable have equal frequencies. Separate tests are performed for each variable.

Obtaining Statistics for Complex Samples Frequencies

This feature requires the Complex Samples option.

1. From the menus choose:

   Analyze > Complex Samples > Frequencies...

2. Select a plan file. Optionally, select a custom joint probabilities file.
3. Click Continue.
4. In the Complex Samples Frequencies dialog box, select Statistics.
5. Select the statistics you want.