Originally posted by The Mysterious Stranger
ugh. I respect your opinion but I guess we just don't agree. I don't think a 15% difference makes your point because I don't think a 15% difference is a huge difference. I think it's insignificant. RP I've seen your posts before and I usually agree with you so I guess this is just one of the times I don't. It's just a difference of opinion because there is really no way to qualify either side.
Yo, I'm not arguing with you because I want you to agree with me. I'm just having a healthy debate here.
🙂
I can tell you that a 15% is a lot... and far from insignificant. Think of it this way.... going from 40% to 25% is a 38% decrease in the percentage of students who are retakers. In august 2 in 5 students are retakes while in april only 1.2 in 5 are retakers. This really is a significant change.
here... let's map it out...
say the average retaker scores a 20 while the average non-retaker scores a 26...
In August the overall average score would be :
0.4(20) + 0.6(26) = 23.60
(which is a predictable overall average)
In April the overall average score would be :
0.25(20) + 0.75(26) = 24.50
That's almost a whole 1 point difference. And on the MCAT, one point difference in the average is a lot.
Now, those average MCAT scores are just educated guesses. But the main point is that if there is a significant difference in the average scores of retakes and nonretakers (which I think there is) then a 38% change in the number of retakers is significant.
However, I think that the negative affect of the extra retakers in august is canceled out by the fact that generally people ahve more time to study for the August test... so the averages for the two test dates comes out the same.