user manual

Chapter

Complex Samples Descriptives

The Complex Samples Descriptives procedure d isplays univariate summary statistics for several

variables. Optionally, you can request statistics by subgroups, deﬁned by one or more categorical

variables.

Example. Using the Complex Samples Descriptives procedure, you can obtain univariate

descriptive statistics for the activity levels of U.S. citizens, based on the results of the National

Health Interview Survey (NHIS) and with an appropriate analysis plan f or this public-use data.

Statistics. The procedure produces means and sums, plus t tests, standard errors, conﬁdence

intervals, coefﬁcients of variation, unweighted counts, population sizes, design effects, and square

roots of design effects for each estimate.

Data. Measures should be scale variables. Subpopulation variables can be string or numeric

but should be categorical.

Assumptions. The cases in the data ﬁle represent a sample from a complex design that should

be analyzed according to the speciﬁcations in the ﬁle selected in the Complex Samples Plan

dialog box.

Obtaining C omplex Samples De scr iptives

E From the menus choose:

Analyze > Co mplex Samples > Descriptives...

Select a plan ﬁ le. Optionally, select a custom joint probabilities ﬁle.

E Click Continue.