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SPSS usage and programming, SPSS syntax, SPSS output.enTue, 02 Sep 2014 15:50:51 GMTvBulletin60http://www.talkstats.com/images/misc/rss.pngStatistics Help @ Talk Stats Forum - SPSS
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Partial correlation
http://www.talkstats.com/showthread.php/57459-Partial-correlation?goto=newpost
Mon, 01 Sep 2014 20:24:57 GMTI have done partial correlation analysis to look at the relationship between X and Y taking into account Z. Can anyone tell me how I can represent...I have done partial correlation analysis to look at the relationship between X and Y taking into account Z. Can anyone tell me how I can represent the correlation visually using SPSS?

Thanks

Lindsay.
]]>SPSSlje032http://www.talkstats.com/showthread.php/57459-Partial-correlationExpectation eaximization with repeated measures data
http://www.talkstats.com/showthread.php/57454-Expectation-eaximization-with-repeated-measures-data?goto=newpost
Mon, 01 Sep 2014 13:44:43 GMTI use SPSS 21.
I have repeated measures data with multiple time points. After the first time point every other time point (two follow-up time...I use SPSS 21.

I have repeated measures data with multiple time points. After the first time point every other time point (two follow-up time points) has significant participant attrition (close to 6oo participants at baseline and around 400 at each follow-up time point). I would like to use expectation maximization to address this missing data so that when I run my analyses I have complete data from every participant, from baseline forward (complete data at all time points for all 600 participants).

First, can expectation maximization in SPSS handle this (missing value analyses --> EM estimation)? Second, how would I actually run these EM analyses? Should I run EM on the scales for all time points simultaneously? What I mean by this is, suppose I have scale X (comprised of 3 continuous variables) measured at 3 time points. Should I first run expectation maximization for scale X at each time point simultaneously (i.e. have 9 items in the "quantitative variables" box)?

If EM can't work, what's a good alternative? I appreciate the help.
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