With a 2 × 2 factorial experiment, you can

Examine the data from the following experiments. Then answer the questions below: EXPERIMENT A       NO TREATMENT        MEDITATION             EXERCISE                4.00                                       6.00                              8.00                4.02                                       6.02                              8.02                4.00                                       6.00                              8.00                4.02                                       6.02                              8.02  [M1] [M2] [M3] a. Using the spaces above, calculate the group means for each treatment group.   EXPERIMENT B       NO TREATMENT        MEDITATION             EXERCISE                1.00                                       1.00                             10.00                8.02                                       9.02                               8.02                6.00                                       6.00                               6.00                1.02                                       8.02                               8.02  [M4][M5]  [M6] b. Using the spaces above, calculate the group means for each treatment group.

In an experiment on the effects of lighting on happiness, happiness would be the:

A statistical test is most likely to indicate significant results when the difference between the means is ____ and the within-groups variability for each both the control and experimental groups is ____.

Use analysis of variance rather than a t test whenever you are dealing with

If only chance is operating to influence your data, then the theoretically expected F ratio would be

In a graph of experimental results, the presence of an interaction is indicated by

Which design would have the least power?

In an experiment, the variable that is manipulated is the:

Lengthening the time between trials should reduce