A research article included the following table:
Mean Score on Four Questionnarie Scales Before and After the Experimental Manipulation.
Questionnaire Before After Change
Dominance 18.42 16.31 -2.11
Independence 17.25 21.38 4.13**
Conformity 18.97 17.20 -1.77*
Nurturance 16.11 13.89 -2.22*
_________________________
* p<.05 **p<.01
What can be said about the "Independence" difference score?
-It is not statistically significant
-It is statistically significant at the .05 level
-It is statistically significant at the .01 level
-It is statistically significant at the .10 level
From the key you have below, it is significant at the .01 level, while the other two below it are significant at the .05 level.
Based on the asterisks provided in the table, the statistical significance of the "Independence" difference score can be determined. The asterisks indicate the level of significance of the difference scores. In this case, there are two asterisks (**), which suggests that the difference score for "Independence" is statistically significant.
The asterisks also provide information about the specific level of significance. In this case, the table states that ** indicates significance at the .01 level, which means that there is less than a 1% chance that the difference score occurred by random chance alone. Therefore, the correct answer is:
- It is statistically significant at the .01 level.