2 ms·
This means they heard the difference - it is not possible to be significantly less accurate than 50% without hearing a difference. For small sample sizes being
by danbruc 12y ago
This means they heard the difference - it is not possible to be significantly less accurate than 50% without hearing a difference.
For small sample sizes being far of is quite likely, for example the chances for getting at most 1/3 of 31 (11 or less) 50/50 guesses right is 1 in 14.
- kmike84 12y agoI agree that sample sizes are small, and there is no proper analysis done - the difference can be only from a chance. But the article states the difference is statistically significant and then draws a wrong conclusion from it (not accurate => can't differentiate).