Dr. Brown conducts an experiment to examine the effects of mentorship programs on children's academic achievement. She finds that children who have mentors receive significantly higher grades than children who don't. The result is statistically significant at the .05 level. What does this mean?
A)The finding probably occurred by chance; mentorship programs probably DO NOT really improve academic achievement.
B)The finding probably did NOT occur by chance; mentorship programs probably DO boost academic achievement.
C)The finding was larger than expected; mentorship programs appear to be even more effective than Dr. Brown suspected.
D)The finding was smaller than expected; mentorship programs appear to be less effective than Dr. Brown suspected.

Question

Quizplus · Accepted Answer

Statistical significance at the .05 level means there is a 95% confidence that the observed difference (higher grades in children with mentors) is not due to chance, suggesting mentorship programs likely have a positive effect on academic achievement.

Dr Brown Conducts an Experiment to Examine the Effects of Mentorship