NOTE:  This page was created using SPSS version 15, but the syntax should work with later versions of SPSS. First off, let’s start with what a significant three-way interaction means. …
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THE MANTEL-HAENSZEL STATISTIC FOR 2x2xK TABLES David P. Nichols Senior Support Statistician SPSS, Inc. From SPSS Keywords, Volume 54, 1994 One of the more common applications in statistical analysis is…
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This seminar will introduce the basics of using Stata, SPSS and SAS.  It is geared to be a one hour introduction covering just the very basics of these packages for…
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Research, from hypothesis development through finished manuscript, is a process.  Hence, the results section of the manuscript is the product of all of the earlier stages of the research.  The…
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The goal of the UCLA IDRE Statistical Consulting Group is to help UCLA faculty, staff, and graduate students perform top-notch research, with the greatest emphasis on data analysis related to grants and…
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This seminar is designed to help you improve your SAS data management skills via the use of arrays. According to SAS, "an array is a temporary grouping of SAS variables…
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You can use multiple contrast statements in a proc glm call to conduct tests of simple main effects.  This is particularly useful when exploring the interaction of three categorical variables…
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This page was adapted from a page created by Oliver Schabenberger.  We thank Professor Schabenberger for permission to adapt and distribute this page via our web site. 1.1 PROG, LOG, and…
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Describe contents of a package on your local computer. Description The %local_help macro will show a help file for a macro located on your local computer and display the help…
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Copy a file from a web server to your local computer. Description The %net_copy macro will download a file over the internet to your local computer. The file can be…
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