MiroslavBulldosex
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A pretty good study regarding the ideal penis size has been conducted a few years ago.
Here it is if you want to check it out in full:
www.ncbi.nlm.nih.gov
Analysis
Here are the demographics of the participants that were selected to be part of the study:
"All participants (N = 75) were screened to report sexual attraction to men, and ranged in age from 18 to 65. They were California residents, mostly white or Asian, sexually experienced, currently in a sexual relationship, and had sex recently (see Table 1). Twenty-seven percent of women reported that they had ended a relationship due, in part, to a mismatch between their penis size preference and their partner’s penis size (see Table 1). More women cited that the penis was too small as a problem, rather than that the penis was too large."
These women had to select among 3D penis models (see picture) and select the ones that they thought were :
- the average penis size
- ideal for ONS
- ideal for LTR
There were a total of 33 penis models to choose from (I will get back to this later):
One interesting thing to note is that women accurately guessed the size of the penis models :
"Recall error was calculated as the difference of the dimension the participant chose minus the size of the actual sample."
"Most (N = 48) women selected the exactly correct model (in both length and circumference) at immediate recall (see Fig 5). About half (N = 31) of women selected exactly the correct model at delayed recall. There was a main effect of dimension predicting model selection error (F(1,73) = 11.6, p < .001, ηp 2 = .14): participants slightly underestimated penis length after the recall interval (M = -0.18 inches or -0.46 cm error), but were very accurate recalling penis circumference (M = 0.02 inches or 0.05 cm error). There was no main effect of delay nor dimension X delay interaction despite high power (f = .1, r = .9, 1-β = .97). Given the high accuracy, analyses for preferences were conducted as planned."
They estimated the average penis size at 5.76x4.5 inches, which is extremely close to the calcSD Western average (5.7x4.68).
The average ideal size for ONS was 6.41x4.97 and the average ideal size for LTR was 6.37x4.83.
40 of the 60 women who answered about their preferred size for ONS chose a penis that was 6.5 inches long or more, 24 of these 60 women chose a penis that was 5.5 inches thick or more.
We can see that the ideal penis size is already above the average, but there is more to it...
Data correction
The main problem with this study is the size of the penis models that they used, a lot of those sizes were unrealistic.
For example, if a woman wanted a penis that was 7 inches long she would have to chose between the model with 3.5 inches girth, the one with 5 inches girth and the one with 6 inches girth. A 7 inches long penis is 1.7 SD above the average while a 3.5 inches thick penis is 2 SD below the average. It's fair to assume that a man with a 7 inches long penis is not going to have 3.5 inches girth (and vice versa).
I decided to fix the data while using this method:
For the cells coloured in light orange there was over a 2 SD difference between length and girth. If the length was overvalued, I deleted the girth data because it wasn't realistic nor was it useful to determine the ideal penis girth. If the girth was overvalued, I deleted the length data.
Here's how it looks like in practice:
docdro.id
You can see how the data for girth and length was deleted in some cells on the data correction sheets.
I decided to to the same but with a 1.5 SD max difference between length and girth (cells in orange) and with a 1 SD max difference (cells in red). In total there were 3 data corrections.
Here you can see how the final results are even higher:
Feel free to discuss.
Here it is if you want to check it out in full:
Women's Preferences for Penis Size: A New Research Method Using Selection among 3D Models
Women’s preferences for penis size may affect men’s comfort with their own bodies and may have implications for sexual health. Studies of women’s penis size preferences typically have relied on their abstract ratings or selecting ...
www.ncbi.nlm.nih.gov
Analysis
Here are the demographics of the participants that were selected to be part of the study:
"All participants (N = 75) were screened to report sexual attraction to men, and ranged in age from 18 to 65. They were California residents, mostly white or Asian, sexually experienced, currently in a sexual relationship, and had sex recently (see Table 1). Twenty-seven percent of women reported that they had ended a relationship due, in part, to a mismatch between their penis size preference and their partner’s penis size (see Table 1). More women cited that the penis was too small as a problem, rather than that the penis was too large."
These women had to select among 3D penis models (see picture) and select the ones that they thought were :
- the average penis size
- ideal for ONS
- ideal for LTR
There were a total of 33 penis models to choose from (I will get back to this later):
One interesting thing to note is that women accurately guessed the size of the penis models :
"Recall error was calculated as the difference of the dimension the participant chose minus the size of the actual sample."
"Most (N = 48) women selected the exactly correct model (in both length and circumference) at immediate recall (see Fig 5). About half (N = 31) of women selected exactly the correct model at delayed recall. There was a main effect of dimension predicting model selection error (F(1,73) = 11.6, p < .001, ηp 2 = .14): participants slightly underestimated penis length after the recall interval (M = -0.18 inches or -0.46 cm error), but were very accurate recalling penis circumference (M = 0.02 inches or 0.05 cm error). There was no main effect of delay nor dimension X delay interaction despite high power (f = .1, r = .9, 1-β = .97). Given the high accuracy, analyses for preferences were conducted as planned."
They estimated the average penis size at 5.76x4.5 inches, which is extremely close to the calcSD Western average (5.7x4.68).
The average ideal size for ONS was 6.41x4.97 and the average ideal size for LTR was 6.37x4.83.
40 of the 60 women who answered about their preferred size for ONS chose a penis that was 6.5 inches long or more, 24 of these 60 women chose a penis that was 5.5 inches thick or more.
We can see that the ideal penis size is already above the average, but there is more to it...
Data correction
The main problem with this study is the size of the penis models that they used, a lot of those sizes were unrealistic.
For example, if a woman wanted a penis that was 7 inches long she would have to chose between the model with 3.5 inches girth, the one with 5 inches girth and the one with 6 inches girth. A 7 inches long penis is 1.7 SD above the average while a 3.5 inches thick penis is 2 SD below the average. It's fair to assume that a man with a 7 inches long penis is not going to have 3.5 inches girth (and vice versa).
I decided to fix the data while using this method:
For the cells coloured in light orange there was over a 2 SD difference between length and girth. If the length was overvalued, I deleted the girth data because it wasn't realistic nor was it useful to determine the ideal penis girth. If the girth was overvalued, I deleted the length data.
Here's how it looks like in practice:
ideal-penis-data.xlsx
#. Avg length 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44. Avg girth 7,5 5,5 5,5 5. NA. 4,5 3,5 5 4 NA. 5,5 5 5,5 4 6,5 7 NA. 5 4 3,5 3,5 4 5 NA. 4 6 5,5 5 6 5 7 6 6 5,5 5,5 6,5 5 5 5 NA. 3,5 4,5 5 4 4,5 5,5 5 4,5 4,5...
docdro.id
You can see how the data for girth and length was deleted in some cells on the data correction sheets.
I decided to to the same but with a 1.5 SD max difference between length and girth (cells in orange) and with a 1 SD max difference (cells in red). In total there were 3 data corrections.
Here you can see how the final results are even higher:
Feel free to discuss.
