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.

Question

Quizplus · Accepted Answer

In any experiment, differences in scores between groups can occur simply due to chance, even if the groups are treated the same. This is why statistical tests are used to determine if observed differences are likely due to the manipulation of the independent variable or just random variation.

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