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The frequency of big dicks does seem really high to me

Originally Posted by sta-kool
For what it is worth, Mr Average is using length data from he got from lifestyles/ansel too so the data he’s working with is the same. (I PM’ed him a while back). He’s what he has on avg and median

Again I am about as dumb as a stump about statistics and math. I can barely add!

I thought I read somewhere that his data doesn’t add up and it seems like it’s a mix of Kinsey stats and other data?


Pre-PE: BPEL 6.25" NBPEL 5.8" EG 5.75 " Now: BPEL 7" NBPEL 6.5" EG 5.95"

Final goal: BPEL 7.5" NBPEL 7" EG 6"

Originally Posted by thecrow19
Actually, assuming a normal bell distribution among penis size, using the mean and standard deviations given by Lifestyles gives a pretty good indication of the frequency.
That being said I read somewhere that the curve is skewed towards smaller then larger penises but I think his calculations will be close.

Well, I don’t think you should assume normal bell destribution.

Originally Posted by thecrow19
I thought I read somewhere that his data doesn’t add up and it seems like it’s a mix of Kinsey stats and other data?

There was some talk from Para and Pri that his length data was good and his girth data was partly Kinsey. I wrote Mr Average and asked him about the girth data and he said that he got both from an article published when Ansel/Lifestyle went public with the results of the study. He said Ansel/Lifestyle is aware of his site and never contacted him that his data was “wrong”.

I believe he said something doesn’t “look right” about the girth data, but he thinks that maybe Lifestyle did some rounding up or down. Unfortunately they have never published a scientific article about it. He has a background in statistics.

I have trouble believing these statistics if it is BP or semiBP. 6.5 inches is top 12%? Something is off here and you can see it in the weird jumps one wouldn’t expect in biological phenomena like penis length. I think it is a mix between weak erections and too small sample. I don’t find it very valuable at all, but since it is the best we have it is anyways. I would have loved it to be true, but it just has to be faulty.


22.01.08 NBPEL: 5.91/15cm, BEG: 4.29/10.9cm, MEG: 4.53/11.5cm

03.09.09 NBPEL: 6.26/15.9cm, BPEL: 7.09/18cm, BEG: 4.49/11.4cm, MEG: 4.92/12.5cm

You know what’s wrong with these surveys? Guys with smaller or average dicks are less inclined to participate, guys with bigger dicks go out of their way to participate, any many people probably lie for one reason or another. I always take the surveys with a grain of salt.

I am what I am right now, and I will be bigger in the future.

Originally Posted by GatorLandon
You know what’s wrong with these surveys? Guys with smaller or average dicks are less inclined to participate, guys with bigger dicks go out of their way to participate <SNIP> I always take the surveys with a grain of salt.

Good point. I saw that explained pretty well in this article:

What’s the average penis size?
Dr. Petra Boynton
http://www.mansized.co.uk/answers/w…-penis-size/a15

Quote
Before you reach for the tape measure, it’s worth knowing that most sex researchers and therapists don’t trust these figures.

The reason? They’re based on measurements from laboratory studies where men knew they were participating in research to see how their knobs measured up.

This means guys who were worried about size were less likely to participate, whilst guys who thought they had big schlongs were more than happy to waggle them under researchers noses.

So most researchers, therapists and doctors suspect the ‘average’ penis size figures obtained in research (and widely quoted) are at least an inch larger than they should be.

This is because research on penis size is skewed in favour of men who are happy to be measured.

That’s partly why you sometimes see a range of penis sizes given (as I did at the start of this answer) rather than the mean size, which is unreliable. If you really want a mean measurement then probably 5 inches when erect is more likely than 6 or 7 inches.

Originally Posted by sta-kool
Maybe I am math challenged but how do you get ” 1 in 6 guys have an erect length of 6.7 “ from the lifestyle length data?????

3.50” to 3.75” 0.2 %
3.75” to 4.00” 0.3 %
4.00” to 4.25” 0.2 %
4.25” to 4.50” 0.7 %
4.50” to 4.75” 0.8 %
4.75” to 5.00” 2.0 %
5.00” to 5.25” 9.0 %
5.25” to 5.50” 10.8 %
5.50” to 5.75” 24.3 %
5.75” to 6.00” 23.9 %
6.00” to 6.25” 9.3 %
6.25” to 6.50” 6.7 %

6.50” to 6.75” 4.4 %
6.75” to 7.00” 2.9 %

7.00” to 7.25” 1.0 %
7.25” to 7.50” 1.0 %
7.50” to 7.75” 0.9 %
7.75” to 8.00” 0.8 %
8.00” to 8.25” 0.3 %
8.25” to 8.50” 0.3 %
8.50” to 8.75” 0.1 %
8.75” to 9.00” 0.1 %
Source: Lifestyles Condom Co., 2001

http://www.mraverage.com/results.htm

Here is the same data on a chart, as done by somebody at wikipedia:

lifestyle_length02.jpg


As to measurement methodology:

http://cornellsun.com/node/24582
“measurements were taken by nurses from the point where the penis meets the body (at the pubic bone).”

http://www.mraverage.com/results.htm
“Measuring of length was from the point at the base of the erect penis where the top of the penile shaft meets the pubic area to the tip of the glans (“head”).”


First off, the original poster has misinterpreted the content of this post: Priapologist - The (statistical) Truth About Cock Size. However, let’s take a look at how to arrive at the numbers and then we’ll see the source of the misconception.

The original argument by Priapologist is based on a normal distribution assumption. This is not a valid assumption since the data that has been released about the Lifestyles survey indicates it is not normal. However, the point of Priapologist’s post was not to indicate claims that should be memorized to the third decimal. It was only to give people a proper sense of order of magnitude to counteract the penis paranoia that drives some guys to Thunder’s Place. For example, threads where some 5” EL guy says that his three best friends are 8” EL. These sorts of configurations are just not that probable. It’s more likely that one or more of the supposedly large friends is lying.

Anyways, let’s run through an example. We’ll use 6.7” since this is what Thecrow19 brings up. This figure is the 84th percentile. This is found by integrating 1/(2*pi)^(1/2)exp(-x^2/2) from -infinity to 1 (since 6.7” is about 1 standard deviation above the mean). Now, how is this converted into 1 in 6? Like this: 1 / (1 - 0.84) = 6.25 or about 1 in 6.

Let’s try another calculation. We’ll do 7.527” (2 standard deviations above the mean). This is the 97.725th percentile. Thus, 1 / (1-0.977725) = 43.96 or about 1 in 44.

It’s important to understand what is going on in these calculations. When we do 1 - 0.84 and 1 - 0.97725 we are actually finding the frequency of dicks 6.7” or greater and 7.527” or greater respectively. It is not the case that 1 in 6 guys is exactly 6.7”; it’s 1 in 6 guys has 6.7” or more. Thus, the 7”, 8”, and 9” guys are already included in that 1 in 6 figure. Clearly, Thecrow19 was thinking something along the lines of “If 1 in 6 guys is 6.7” then maybe 1 in 8 guys is 7”, 1 in 10 guys is 7.5”, etc. so there must be a lot of big guys.” That’s a misconception. I hope this clears it up.

Originally Posted by Invisible
First off, the original poster has misinterpreted the content of this post: Priapologist - The (statistical) Truth About Cock Size. However, let’s take a look at how to arrive at the numbers and then we’ll see the source of the misconception.

The original argument by Priapologist is based on a normal distribution assumption. This is not a valid assumption since the data that has been released about the Lifestyles survey indicates it is not normal. However, the point of Priapologist’s post was not to indicate claims that should be memorized to the third decimal. It was only to give people a proper sense of order of magnitude to counteract the penis paranoia that drives some guys to Thunder’s Place. For example, threads where some 5” EL guy says that his three best friends are 8” EL. These sorts of configurations are just not that probable. It’s more likely that one or more of the supposedly large friends is lying.

Anyways, let’s run through an example. We’ll use 6.7” since this is what Thecrow19 brings up. This figure is the 84th percentile. This is found by integrating 1/(2*pi)^(1/2)exp(-x^2/2) from -infinity to 1 (since 6.7” is about 1 standard deviation above the mean). Now, how is this converted into 1 in 6? Like this: 1 / (1 - 0.84) = 6.25 or about 1 in 6.

Let’s try another calculation. We’ll do 7.527” (2 standard deviations above the mean). This is the 97.725th percentile. Thus, 1 / (1-0.977725) = 43.96 or about 1 in 44.

It’s important to understand what is going on in these calculations. When we do 1 - 0.84 and 1 - 0.97725 we are actually finding the frequency of dicks 6.7” or greater and 7.527” or greater respectively. It is not the case that 1 in 6 guys is exactly 6.7”; it’s 1 in 6 guys has 6.7” or more. Thus, the 7”, 8”, and 9” guys are already included in that 1 in 6 figure. Clearly, Thecrow19 was thinking something along the lines of “If 1 in 6 guys is 6.7” then maybe 1 in 8 guys is 7”, 1 in 10 guys is 7.5”, etc. so there must be a lot of big guys.” That’s a misconception. I hope this clears it up.

No, I guess I didn’t word it properly. I know 1 in 6 will not have exactly 6.7” and I also know that includes greater then 6.7” but that was the point I was making. The fact that 1 in 6 will have 6.7”(what I believe to be NBPEL)or greater seems really high. Like I said before a 6.7” NBPEL dick seemed big to me but if, on average, 1 in 6 guys have that or bigger then their are alot bigger dicks out there then I thought.


Pre-PE: BPEL 6.25" NBPEL 5.8" EG 5.75 " Now: BPEL 7" NBPEL 6.5" EG 5.95"

Final goal: BPEL 7.5" NBPEL 7" EG 6"

Also Invisible, what about my question on the difference between the sizes among a sample of 6 men. Say on average you get 1 out of 6 equal to or greater then 6.7” and 1 out of 6 equal to or less then 5”, then wouldn’t the difference between the biggest cock and smallest cock among 6 randomly selected men be on average about 1.7”. That seems crazy to me. I thought the erection was supposed to be the great equalizer? Am I missing something?


Pre-PE: BPEL 6.25" NBPEL 5.8" EG 5.75 " Now: BPEL 7" NBPEL 6.5" EG 5.95"

Final goal: BPEL 7.5" NBPEL 7" EG 6"

Originally Posted by thecrow19

Also Invisible, what about my question on the difference between the sizes among a sample of 6 men. Say on average you get 1 out of 6 equal to or greater then 6.7” and 1 out of 6 equal to or less then 5”, then wouldn’t the difference between the biggest cock and smallest cock among 6 randomly selected men be on average about 1.7”. That seems crazy to me. I thought the erection was supposed to be the great equalizer? Am I missing something?

What I don’t understand is why you’re making such a big fuss over this?


I'm a big fan of 50 Cent, or as we call him in Zimbabwe, four hundred million dollars.

Haha…where’s the fuss dude? There’s always someone jumping on a thread and making it more of a deal then I am. I’m asking a question that no one answered. I read for years that most guys are REALLY similar in measurements. And that the erection is the great equalizer compared to the flaccid. Yet, from my dumb brain, taking the stats I get an average of 1.7” difference among only 6 random individuals(as a high and low). That’s close to 2” in only 6 people. That seems insane to me. I’m just curious as to what I’m doing wrong.

Not to be rude but if me asking these questions is bothering you then stay off the thread. It’s something that I’m curious about. I never really heard this raised before. Isn’t that what we’re here for….to learn?


Pre-PE: BPEL 6.25" NBPEL 5.8" EG 5.75 " Now: BPEL 7" NBPEL 6.5" EG 5.95"

Final goal: BPEL 7.5" NBPEL 7" EG 6"

Originally Posted by sta-kool
Good point. I saw that explained pretty well in this article:

What’s the average penis size?
Dr. Petra Boynton
http://www.mansized.co.uk/answers/w…-penis-size/a15

I’m sorry, but this has to be the most absurd article I have read ont he subject.

For sure I do believe guys with larger units are more ready to take part in surveys than smaller guys.

However, the article opens up:

“Studies of penis size show the 'average' erect penis ranges from 5 to 7 inches (13 to 16 cms) with a girth of about 4 inches (10 cms).”

This is a quite stupid statement. Firstly, what survey has ever shown average girth @ 4”? Secondly, I’ve seen no studies state an average @5” or for that matter one stating average @7”. Finally, to say the average is between these figures is like saying average male height is between 5’8 and 6’2, totally unrealistic distribution.


01/08/07: 5.75" BPEL, 5.25" EG ::: 26/05/10: 7.3" BPEL, 5.4" MSEG, [My Progress Pics] - [My Routine]

Revised Min Final Objective: [/b] 7.75" BPEL (33% increase), 5.5" MSEG

Yeah that is odd — there are some typos in the article and sloppyness. For example convert the length centimeters she sites.

13cm = 5.1”
16cm = 6.3”

But I wouldn’t dismiss the article as absurd — best explanation I have seen of shower vs grower, also good stuff on size anxiety.

Originally Posted by Ruz_
I’m sorry, but this has to be the most absurd article I have read ont he subject.

For sure I do believe guys with larger units are more ready to take part in surveys than smaller guys.

However, the article opens up:

“Studies of penis size show the 'average' erect penis ranges from 5 to 7 inches (13 to 16 cms) with a girth of about 4 inches (10 cms).”

This is a quite stupid statement. Firstly, what survey has ever shown average girth @ 4”? Secondly, I’ve seen no studies state an average @5” or for that matter one stating average @7”. Finally, to say the average is between these figures is like saying average male height is between 5’8 and 6’2, totally unrealistic distribution.

Actually, I’ve seen a few that were pretty close to 5”NBPEL(Wessells comes to mind). Never saw any that were above 6.4”(Durex I believe)but not sure if BPEL or NBPEL.


Pre-PE: BPEL 6.25" NBPEL 5.8" EG 5.75 " Now: BPEL 7" NBPEL 6.5" EG 5.95"

Final goal: BPEL 7.5" NBPEL 7" EG 6"

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