The data below are from an independent-measures experiment comparing three different treatment conditions.                                   Treatment 1       Treatment 2       Treatment 3                                         0                          2                        4                                         0                          3                        2        G = 36                                         0                          1                        4      ΣX2 = 114                                         3                          3                        3                                         0                          2                        4                                         0                          1                        4                                 –––––––––––––––––––––––––––––––––––––                                     T = 3                   T = 12               T = 21                                   SS = 7.5               SS = 4                SS = 3.5   Compute η2, the percentage of variance accounted for by the treatments.

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The data below are from an independent-measures experiment comparing three different treatment conditions. 

                                 Treatment 1       Treatment 2       Treatment 3

                                        0                          2                        4

                                        0                          3                        2        G = 36

                                        0                          1                        4      ΣX2 = 114

                                        3                          3                        3

                                        0                          2                        4

                                        0                          1                        4

                                –––––––––––––––––––––––––––––––––––––

                                    T = 3                   T = 12               T = 21

                                  SS = 7.5               SS = 4                SS = 3.5

 

Compute η2, the percentage of variance accounted for by the treatments.

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