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In SPSS, to perform this analysis, the following steps are involved: 1  Click on the âSPSSâ icon from the start menu. 2  Click on the âOpen dataâ icon and select the data. 3  Click on the âanalysisâ menu and select the âregressionâ option. 4  Select two-stage least squares (2SLS) regression analysis from the regression option. Click on the âOpen dataâ icon and select the data. 2  Click on the âanalysisâ menu and select the âregressionâ option. 3  Select two-stage least squares (2SLS) regression analysis from the regression option.
Let's step through some sample work. 1  Hit the MATRX key. ( 2 On the TI-83, this is a key all to itself; on the TI-83+, it is in yellow above another key.) This brings you to a menu with a list of all the matrices. 3  Use the right-arrow twice to move over to EDIT since your intention is to create a matrix. Hit STAT to go into the Statistics menu. 2  Choose Edit... 3  This brings you to a screen where you enter a bunch of L1 and L2 values. 4  Enter the L1 and L2 values as follows: for each data point, the x-coordinate is in the L1 list, and the y-coordinate is in the L2 list. 5  Hit 2nd QUIT return to the main screen.