3.2 Three variables
[Page last updated 7 Nov 2014]
Introducing a third variable. Controlling for test variables. Elaboration.
Logical model is X → Y . T (the effect of X on Y controlling for T)
where
Y = Dependent variable
X = Independent variable
T = Test variable
The following materials are in preparation.
3.2.1 Tutorial - Elaboration
3.2.2 Exercise for elaboration
3.2.3 Specimen answer for elaboration exercise
3.2.4 Income differences - Elaboration (new tutorial 1 Oct 2014) [14pp pdf]
Using file 3.1.4.4.sav, produces three-way contingency tables to see what happens to differences in earnings between men and women when controlling for selected test variables. Uses SPSS
CROSSTABS depvar BY indvar BY testvar for some tables but also demonstrates how CTABLES produces neater and cleaner output. Epsilon (percentage point difference) is calculated at each level.
Introducing a third variable. Controlling for test variables. Elaboration.
Logical model is X → Y . T (the effect of X on Y controlling for T)
where
Y = Dependent variable
X = Independent variable
T = Test variable
The following materials are in preparation.
3.2.1 Tutorial - Elaboration
3.2.2 Exercise for elaboration
3.2.3 Specimen answer for elaboration exercise
3.2.4 Income differences - Elaboration (new tutorial 1 Oct 2014) [14pp pdf]
Using file 3.1.4.4.sav, produces three-way contingency tables to see what happens to differences in earnings between men and women when controlling for selected test variables. Uses SPSS
CROSSTABS depvar BY indvar BY testvar for some tables but also demonstrates how CTABLES produces neater and cleaner output. Epsilon (percentage point difference) is calculated at each level.