We Should Assume That, in Any Experiment, the Scores Obtained

Multiple Choice

We should assume that, in any experiment, the scores obtained from different groups of subjects

A) will reflect all possible differences between the groups.
B) will be due only to the manipulation of the independent variable.
C) should be statistically significant.
D) will be different simply due to chance.
E) will only be different if the groups have been subjected to different conditions.