Splittet
Wannabe genius
- Joined
- Jun 12, 2007
- Messages
- 632
- MBTI Type
- INTJ
Are you saying that somehow, all of these people that have taken this had musical training or something of some sort, and my results aren't that weird? If that's the case, I feel better. And what's an SD?
Well, that's not what I was trying to say there, but I have mentioned that earlier in the thread. It's just like with online IQ tests. People who take them and seek them out are quite a lot smarter than the average person. The average IQ for people taking online tests is something like 115 (84th percentile), while it is 100 in the general population. The thing is, I think these musical tests will attract people very interested in music and musicians to a larger degree than the average human, which makes the sample biased. Just how much better the sample is than the average population, I cannot now, but if it is along the lines of online IQ tests, it's about 1SD.
Wikipedia on standard deviation (it's a statistical term): Standard deviation - Wikipedia, the free encyclopedia
Standard deviation kind of has to do with a standardized measure of deviation in statistical data. A small table on the meaning of it (hopefully you will get a sense of what it means then):
-3SD: 0,1st percentile
-2,5SD: 0,6th percentile
-2SD: 2nd percentile
-1,5SD: 6th percentile
-1SD: 16th percentile
-0,5SD: 31st percentile
0SD: 50th percentile
0,5SD: 69th percentile
+1SD: 84th percentile
+1,5SD: 93rd percentile
+2SD: 98th percentile (Mensa membership requirement)
+2,5SD: 99,4th percentile
+3SD: 99,9th percentile
(Notice the symmetry.)
You should also see this graph: Image:Standard deviation diagram.svg - Wikipedia, the free encyclopedia
Truly, having some understanding have this has enhanced my quality of life!