Statistics Help @ Talk Stats Forum - SPSS
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SPSS usage and programming, SPSS syntax, SPSS output.enTue, 21 Nov 2017 00:30:38 GMTvBulletin60http://www.talkstats.com/images/misc/rss.pngStatistics Help @ Talk Stats Forum - SPSS
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Cox proportional hazard model for survival analysis on multilevel data
http://www.talkstats.com/showthread.php/70792-Cox-proportional-hazard-model-for-survival-analysis-on-multilevel-data?goto=newpost
Mon, 20 Nov 2017 17:08:55 GMTI am trying to run a survival analysis on a multilevel data (two levels) with five units nested within each person (each case has data from five...I am trying to run a survival analysis on a multilevel data (two levels) with five units nested within each person (each case has data from five different years). I have a number of covariates to enter into the model as I am interested in their interaction.
I am considering using a Cox proportional hazard model but I found this is not a good fit for multilevel data unless random effect is incorporated.
My questions are: first, is Cox regression model with mixed effects the best model for analyzing my data given its nature. Secondly, does anyone know how to incorporate random effect into a conventional Cox proportional hazards model on SPSS? I have found a description on how to do this from an article by Austin, P. C. (2017) (A tutorial on multilevel survival analysis: methods, models, and applications. International Statistical Review) but he has demonstrated this using STATA and R.
]]>SPSSabcdefghijhttp://www.talkstats.com/showthread.php/70792-Cox-proportional-hazard-model-for-survival-analysis-on-multilevel-dataMixed Effect Model in SPSS
http://www.talkstats.com/showthread.php/70786-Mixed-Effect-Model-in-SPSS?goto=newpost
Sun, 19 Nov 2017 17:47:20 GMTI keep getting error messages:' The levels of the repeated effect are not different for each observation within a repeated subject.' Can anyone offer me some advice whether I can perform Mixed Effect Model in SPSS with my data or I have organised my data correctly?

I have two groups of participants X and Y who performed two sets of tasks i.e. A and B. Group 1 has 12 subjects, Group 2 has 16 subjects. Each subjects performed 12 trials in each of the tasks although there are some missing data. I'm interested in the differences in latency (Dependent Variable) between the two groups and tasks (i.e. standard Mixed Plot ANOVA design) and would like to use Linear Mixed Model to analyse the data in SPSS. I labelled Task as Repeated Measures factor (same group of participants in both tasks), Group as Fixed Effect, and ID as Random Effect.
I've organised my data in this manner:

ID Group Task Latency

1 A 1 283
1 A 1 357
1 A 1 457
2 A 1 289
2 A 1 354
2 A 1 892
3 B 1 283
3 B 1 357
3 B 1 457
3 B 1 289
4 B 1 354
4 B 1 892
4 B 1 283
1 A 2 283
1 A 2 357
1 A 2 457
2 A 2 289
2 A 2 354
2 A 2 892
3 B 2 283
3 B 2 357
3 B 2 457
3 B 2 289
4 B 2 354
4 B 2 892
4 B 2 283
]]>SPSSStaceFhttp://www.talkstats.com/showthread.php/70786-Mixed-Effect-Model-in-SPSSHow can I make a chart with the percentages/values labelled?
http://www.talkstats.com/showthread.php/70780-How-can-I-make-a-chart-with-the-percentages-values-labelled?goto=newpost
Sun, 19 Nov 2017 11:11:28 GMTI have tried making graphs will graph-builder. For some bizarre reason cannot get the charts made up with he percentages/values labelled. I know it...I have tried making graphs will graph-builder. For some bizarre reason cannot get the charts made up with he percentages/values labelled. I know it sounds simple but its not obvious to me. Would really appreciate any help.