The SAS System                      01:29 Thursday, February 10, 2005   1

                                                         The FREQ Procedure

                                                      Table of first by second

                                                first     second

                                                Frequency|
                                                Percent  |
                                                Row Pct  |
                                                Col Pct  |       1|       2|  Total
                                                ---------+--------+--------+
                                                       1 |    794 |    150 |    944
                                                         |  49.63 |   9.38 |  59.00
                                                         |  84.11 |  15.89 |
                                                         |  90.23 |  20.83 |
                                                ---------+--------+--------+
                                                       2 |     86 |    570 |    656
                                                         |   5.38 |  35.63 |  41.00
                                                         |  13.11 |  86.89 |
                                                         |   9.77 |  79.17 |
                                                ---------+--------+--------+
                                                Total         880      720     1600
                                                            55.00    45.00   100.00


                                              Statistics for Table of first by second

                                                           McNemar's Test
                                                   ------------------------------
                                                   Statistic (S)          17.3559
                                                   DF                           1
                                                   Asymptotic Pr >  S      <.0001
                                                   Exact      Pr >= S   3.716E-05


                                                      Simple Kappa Coefficient
                                                  --------------------------------
                                                  Kappa                     0.6996
                                                  ASE                       0.0180
                                                  95% Lower Conf Limit      0.6644
                                                  95% Upper Conf Limit      0.7348

                                                         Sample Size = 1600
                                                           The SAS System                      01:29 Thursday, February 10, 2005   2

                                                        The CATMOD Procedure

                                                           Data Summary

                                     Response           first*second     Response Levels     4
                                     Weight Variable    count            Populations         1
                                     Data Set           MATCHED          Total Frequency  1600
                                     Frequency Missing  0                Observations        4


                                                        Population Profiles
 
                                                       Sample    Sample Size
                                                       ---------------------
                                                           1            1600


                                                         Response Profiles
 
                                                    Response    first    second
                                                    ---------------------------
                                                        1       1        1     
                                                        2       1        2     
                                                        3       2        1     
                                                        4       2        2     


                                                Response Functions and Design Matrix
 
                                                   Function      Response     Design Matrix
                                         Sample     Number       Function        1        2
                                         --------------------------------------------------
                                             1          1         0.59000        1        0
                                                        2         0.55000        1        1


                                                        Analysis of Variance
 
                                            Source         DF   Chi-Square    Pr > ChiSq
                                            --------------------------------------------
                                            Model|Mean      1        17.55        <.0001

                                            Residual        0          .           .    


                                            Analysis of Weighted Least Squares Estimates
 
                                                                  Standard        Chi-
                                Effect    Parameter    Estimate      Error      Square    Pr > ChiSq
                                --------------------------------------------------------------------
                                Model          1         0.5900     0.0123     2302.44        <.0001
                                               2        -0.0400    0.00955       17.55        <.0001