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Block 3: Analysing two variables (and sometimes three)
Introducing a third variable. Controlling for test variables. Elaboration.
[Page last updated: 25 August 2011]
A number of files for Block 3 are still in their original 1990 or 1991 format (ie WordStar 4, VMS, EDT and with syntax for interactive SPSS-X 4 on a Vax cluster: all the output is in lineprinter format) It's interesting to see how the syntax and output formats have changed. Some sample output is from SPSS -X 4 on the Vax mainframe and all jobs need re-running with SPSS 19. This is very time-consuming, but I'll get them converted and uploaded as quickly as I can. The numbering system for the files below is subject to change, but the numbers in the downloaded document titles may be different. Don't worry: the links are to the correct files.
3.1 Two variables (CROSSTABS)
Joint frequency distributions of two variables displayed in contingency tables.
Dependent and independent variables: rules for percentaging.
3.2 Three variables
Introducing a third variable. Controlling for test variables. Elaboration.
3.3 Multiple response (MULT RESPONSE)
Explanation of multiple response questions, examples from real surveys, and exercises in analysis using
SPSS.
3.4 Conditional data transformations (IF and DO IF)
3.5 Derived variables (COUNT and COMPUTE)
Set of tutorials (with fully worked examples using data from a real survey of 15 year-olds)
on the use of COUNT and COMPUTE to construct scores from simple attitude scales designed to measure "attachment to the status quo" and "sexism".
[Page last updated: 25 August 2011]
A number of files for Block 3 are still in their original 1990 or 1991 format (ie WordStar 4, VMS, EDT and with syntax for interactive SPSS-X 4 on a Vax cluster: all the output is in lineprinter format) It's interesting to see how the syntax and output formats have changed. Some sample output is from SPSS -X 4 on the Vax mainframe and all jobs need re-running with SPSS 19. This is very time-consuming, but I'll get them converted and uploaded as quickly as I can. The numbering system for the files below is subject to change, but the numbers in the downloaded document titles may be different. Don't worry: the links are to the correct files.
3.1 Two variables (CROSSTABS)
Joint frequency distributions of two variables displayed in contingency tables.
Dependent and independent variables: rules for percentaging.
3.2 Three variables
Introducing a third variable. Controlling for test variables. Elaboration.
3.3 Multiple response (MULT RESPONSE)
Explanation of multiple response questions, examples from real surveys, and exercises in analysis using
SPSS.
3.4 Conditional data transformations (IF and DO IF)
3.5 Derived variables (COUNT and COMPUTE)
Set of tutorials (with fully worked examples using data from a real survey of 15 year-olds)
on the use of COUNT and COMPUTE to construct scores from simple attitude scales designed to measure "attachment to the status quo" and "sexism".
