Heres some interesting statistics to ponder. Over the past several months, I’ve had a blind test on this web site of multiple choice questions. I put this up just to see what would happen. This is of course not official at all and there is no knowledge of the status of those people who voted, nor controls on the tests. But here are the results. Make of them what you will and email me with your comments. They would be greatly appreciated. .
Initial feedback to results of blind test
Subject: Reverse Speech Blind Testing
Date: Sat, 13 May 2000 04:27:35 -0700
From: “George” <******>
To: “David Oates” <backwards@reversespeech.com>
David:
Interesting questionnaire results. Question 1 can, as I see it, tell most of the story. If there was no difference in the answers people would be guessing and probably getting the “correct” answer about 25% of the time. Given a probability of 25% & a correct response of 284 out of 458 responses gives a very long odds of about ten to the 60th power to 1. That’s 1 followed by 60 zeros. If one were to be much more conservative and say that there are really only two answers the correct one and all the others, then the chance of a correct answer could be 50%. So doing the same thing again but with probability to 50% the odds of getting 284 correct out of 458 is only 6,436,000 to 1. This very clearly shows that there is something going on other than guessing. Doing the odds for the whole questionnaire would produce odds that are extremely huge, but not much more meaningful.
What does this tell us? As I see it, it tells us that there is definitely something about the sound of reverse speech that has some consistency. In other words people tend to hear the same thing. That’s not particularly useful info though. Analyzing how many people got 10 out of 10, or 9 out of ten could be more interesting i.e. hinting that there is a skill involved.
It seems that you might be wanting to have academic proof for RS. To “prove” reverse speech, It seems to me that one needs to show that the reverse sounds are meaningful and intelligent. One of the best way to do that as I see it, would be to have RS tell us something that is not presently known, but soon will be known. And particularly something with a probability that is well defined. One of the best ways to get something that is not presently known, and soon to be known, is to have it be a future event. For example: Predict the outcome in advance of the winners of maybe 12 football games. I’m assuming that no one can predict the results better than 60% of the time. Then post these predicted results on the web. Have RS people visit that page and save a copy the predicted results to their hard drive. Making particular note of the date and time so that they can be good witnesses. Then email that they have done so. This will give us a witness list, to prove that these results were done before the games were played. To be considered scientifically valid an experiment must reach at least what is call a “95% confidence level” that means a chance result of less than 1 in 20. At 60% chance of being right, 12 out of 12 would be 99.7% confidence level or about 1 in 460. And 11 out of 12 correct would be a 98% confidence level.
Either should be considered to be a valid positive experiment. With it being a future event, it should be viewed as having proper controls. Given the info that you gave me about a 30 minute tape being required to get a Yes / No or Win / Lose answer, an experiment like this could take analyzing 12 30-minute tapes within 1 week of time or so. I strongly suspect that there are other future events that can be predicted requiring somewhat less time. So this is probably just an example. I believe that this amount of time and effort put into another project would produce tens of thousands of dollars and thus make many things much easier, including proof of RS.
George
Answers as I anticipated they would be.
1/ Get back in it
2/ It broke mummy
3/ They pulled out the grass
4/ None of the above
5/ You were never my Daddy
6/ Hear the lie
7/ Wolf in White van
8/ Who’s sorry
9/ None of the above
10/ Cuddle me (but it is an imprecise reversal)
Reverse Speech Blind Testing
Decide what each reversal says. |
Reverse Speech Blind Testing
Current Vote Statistics
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Total Votes: 458 |
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Total Votes: 442 |
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Total Votes: 437 |
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Total Votes: 439 |
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Total Votes: 436 |
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Total Votes: 422 |
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Total Votes: 421 |
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Total Votes: 425 |
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Total Votes: 423 |
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Total Votes: 433 |