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* SPSS Homework 7: categorical by continuous variable interaction
* ********************************************
* There are two groups in the data. Group 1 (dummy code 1) is at high risk
* for breast cancer.  Group 3 (dummy code 0) is at low risk for breast cancer.
* (Group 2 has been eliminated from the data set).
* The question is raised as to whether risk is related to intention to obtain
* breast cancer screening (int2gr, the dependent variable) in the same manner in
* the two risk groups.
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data list file = 'a:\home7dat.txt' records=1 fixed
   /1 case (f4.0) group (f4.0) dummy (f4.0) risk (f10.4) int2gr (f10.4).