Statistical analysis after grouping

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Statistical analysis after grouping

Kai Johanning

Hi,

I have to analyse a scientific data base with a multitude of variables.

For this, I want to group my data (e.g. with/without  a special laboratory measurement) and after this (!) compare different variables of these groups (e.g. with t-test).

I know how to open the syntax editor and to execute simple code. But for building complex codes I am at my wits’ end. I have already searched and tried out some syntaxes on Raynald´s SPSS Tools page and also searched the listserv-page, but without real success.

I do not know, whether/ how to group my data and afterwards handle the results for  statistical analysis. (How) Do I have to create new variables in new data sheets and compare these to each other?

Perhaps there are some people who could help me with this (I use SPSS Vers. 18 for Mac).

 

Thank you very much!

Greetings from Kiel, Germany!

Kai

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Re: Statistical analysis after grouping

Jarrod Teo-2
Hi Kai,

I believe you will need to be more specific. Which kinda variables would you like to group? Example age into agegroup

Recode is bascally the command you will need to use to group variables.

However, I will suggest for you to try transform-recode into different variables using click drag and drop. The newly recoded variable will then be used for 2 independent samples T-test (assuming that these 2 groups are independent) with a scale variable for analysis.

I hope this resolve your issue. Else it will be good if you have a dummy sample of your data(don't show sensitive information please) and provide a more detail information of which variable do you exactly wanna use.

Warm regards
Dorraj Oet


Date: Thu, 2 Jun 2011 15:45:39 +0200
From: [hidden email]
Subject: Statistical analysis after grouping
To: [hidden email]

Hi,

I have to analyse a scientific data base with a multitude of variables.

For this, I want to group my data (e.g. with/without  a special laboratory measurement) and after this (!) compare different variables of these groups (e.g. with t-test).

I know how to open the syntax editor and to execute simple code. But for building complex codes I am at my wits’ end. I have already searched and tried out some syntaxes on Raynald´s SPSS Tools page and also searched the listserv-page, but without real success.

I do not know, whether/ how to group my data and afterwards handle the results for  statistical analysis. (How) Do I have to create new variables in new data sheets and compare these to each other?

Perhaps there are some people who could help me with this (I use SPSS Vers. 18 for Mac).

 

Thank you very much!

Greetings from Kiel, Germany!

Kai