https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3961208/
This is a pretty devastating study, I don't want to go through the entire thing again, so I will just pick out the highlights and then write my conclusion.
"The present study integrates data from two different studies in which two independent groups of students participated: the first group consisted of 80 biology students at the Faculty of Science who were tested for IQ and photographed; the second group involved 160 raters, students at the Faculty of Humanities who rated the photos of the biology students either for intelligence or for attractiveness (each student rated 80 randomized photos). "
"To measure the intelligence of subjects, we used a Czech version of Intelligence Structure Test 2000 R [29], [30]. The test consists of a basic module, which is comprised of three verbal, three numerical, and three abstract figural reasoning tasks. The test also includes two memory tasks and a knowledge test. The knowledge test is focused on questions from geography/history, business, science, mathematics, arts, and daily life."
"We found a positive correlation between perceived intelligence and perceived attractiveness: r = 0.762, N = 80, p<0.001. This correlation was much stronger in the judgment of women's faces (r = 0.901, N = 40, p<0.001) than those of men (r = 0.502, N = 40, p<0.001). This difference was statistically significant (z = 3.98, p<0.001). The ratings for intelligence done by both men and women were highly correlated (r = 0.88, p<0.001), therefore we decided to analyse the ratings of both sexes together."
This I found curious. Apparently, women are judged almost entirely based on their attractiveness when it comes to their intelligence, even by other women. This is scientific proof that all women are good for are their looks
.
To test the effect of intelligence on attractiveness, we regressed the attractiveness ratings on the IQ scores for general intelligence. The age of the photographed subject was added to the model as covariate. We found no effect of IQ on perceived attractiveness, either for men (F1,37 = 1.748, p = 0.139, η2 = 0.045) or for women (F1,37 = 0.346, p = 0.346, η2 = 0.024). The effect of age was not significant for women (p = 0.99) but close to significant for men (p = 0.062).
Two things to note here; One, obviously, your actual IQ plays no role in your perceived attractiveness, and plays a smaller role than you might expect when it comes to your perceived intelligence. Secondly, age affects men's physical attractiveness a decent bit more than it affects women's physical attractiveness, in case you needed more proof that the wall is a myth.
"We found no relationship between facial morphospace and IQ as measured by IQ test."
This is a bombshell however. Despite what people such as ITV have claimed, actual IQ and perceived attractiveness have NO CORRELATION. I know it's very common for us to denigrate every aspect of ourselves, but you have to understand that some of it just isn't factually true. Just because you ended up here DOES NOT NECESSARILY MAKE YOU LOW IQ, NOR DOES IT MAKE CHAD INTELLIGENT.
"Our raters were able to estimate intelligence with an accuracy higher then chance from static facial photographs of men but not from photos of women. At the same time, we found no differences in the abilities of men and women to assess intelligence from static facial photos: the ratings of both sexes were highly correlated, r = 0.88. Perceived intelligence positively correlated with attractiveness in both men and women. Even though this contrasts some previous findings [10], [11], [40], [41], we did not observe any significant correlation between measured IQ and attractiveness. However, it should be noted that evidence for a relationship between actual intelligence and physical attractiveness in adults seems rather weak. Zebrowitz et al [10] did not find any significant correlation between perceived intelligence and attractiveness in individuals older than 18 years, i.e. middle adulthood (30 to 40) and later adulthood (52 to 60); however Zebrowitz et al did not examine individuals of a similar age bracket to our study (21.4 years in average). The existence of a correlation between attractiveness and intelligence in the age cohort from 19 to 29 years would appear questionable at the very least. Moreover, meta-analytic study has shown that physical attractiveness is not correlated to actual intellectual competence in adults, but is modestly correlated in children [15]. Similarly, other studies have reported close to zero correlation between attractiveness and actual intelligence in adults"
More proof supporting my prior statement.
"
Though we were not able to objectively detect an association between IQ and facial morphology, we can provide a statistically supported description of the stereotype of an intelligent-looking face. Our data suggest that a clear mental image how a smart face should look does exist for both men and women within the community of human raters. The intelligence-stereotype shows the same transformations in facial shape space for both men and women. In both sexes, a narrower face with a thinner chin and a larger prolonged nose characterizes the predicted stereotype of high-intelligence, while a rather oval and broader face with a massive chin and a smallish nose characterizes the prediction of low-intelligence (see Figs. 2 and and3).3). There also seems to be a correlation between semblances of emotions of joy or anger in perceptions of high or low intelligence in faces, respectively. The ‘high intelligence’ faces appear to be smiling more than the ‘low intelligence’ faces. A similar pattern was described for the perception of trustworthiness [37]. Perceived intelligence correlates with perceived trustworthiness and happiness. Conversely, low-intelligence faces are perceived as untrustworthy and considered angrier [42]. Moreover, perceived intelligence was also shown to be positively associated with perceived friendliness and sense of humour in both male and female faces but negatively related with perceived dominance in faces of women [43].
The face shape associated with a higher perception of intelligence also shows the characteristics of higher perception of attractiveness, while the face shape associated with a lower perception of intelligence shows traits of higher perceived dominance. The positive correlation with attractiveness and trustworthiness and negative correlation with dominance may explain the attribution of higher intelligence to longer, narrower faces."
tl;dr, more compact faces are seen as unintelligent, while longer and narrower faces are seen as more intelligent.
"The quadratic shape of the negative relationship between perceived intelligence and IQ points at the constraints that limit the preference of men with a very high IQ. Men with an IQ higher than 140 are perceived as relatively less intelligent (see Fig. 4.), which can reflect an adaptation to an upper intelligence limit as men with an extremely high IQ could find such practical tasks, such as the care and protection of women and offspring, less rewarding. "
This is something I also found interesting, apparently freakishly intelligent members of society are seen as unintelligent by society at large. I wonder how they gain this impression from those members of society?
"Another option is that women are pervasively judged according to their attractiveness. The strong halo effect of attractiveness may thus prevent an accurate assessment of the intelligence of women. This seems to be supported by a significantly higher correlation of perceived intelligence with attractiveness in women's faces (r = 0.901) in comparison to that in men's faces (r = 0.502)."
All toilets are good for are their looks lmao.
"To conclude, humans were able to estimate actual intelligence from facial photographs of men but not women. The attractiveness ratings were not statistically related to measured intelligence in both men and women. No difference between men and women existed in the raters' ability to assess intelligence, and no specific traits that correlated with real intelligence were detected with standard geometric morphometric methods. Men and women with specific facial traits were perceived as highly intelligent. However, these faces of supposed high and low intelligence probably represent nothing more than a cultural stereotype because these morphological traits do not correlate with the real intelligence of the subjects."
tl;dr for the whole thing: Your appearance does not play a role in your actual IQ, however, it plays a sizeable role in your perceived IQ. Additionally, the perception of a woman's IQ is determined almost entirely by her appearance, meanwhile in men, it plays a large role, however, it does not determine the entirety of it.
This is a pretty devastating study, I don't want to go through the entire thing again, so I will just pick out the highlights and then write my conclusion.
"The present study integrates data from two different studies in which two independent groups of students participated: the first group consisted of 80 biology students at the Faculty of Science who were tested for IQ and photographed; the second group involved 160 raters, students at the Faculty of Humanities who rated the photos of the biology students either for intelligence or for attractiveness (each student rated 80 randomized photos). "
"To measure the intelligence of subjects, we used a Czech version of Intelligence Structure Test 2000 R [29], [30]. The test consists of a basic module, which is comprised of three verbal, three numerical, and three abstract figural reasoning tasks. The test also includes two memory tasks and a knowledge test. The knowledge test is focused on questions from geography/history, business, science, mathematics, arts, and daily life."
"We found a positive correlation between perceived intelligence and perceived attractiveness: r = 0.762, N = 80, p<0.001. This correlation was much stronger in the judgment of women's faces (r = 0.901, N = 40, p<0.001) than those of men (r = 0.502, N = 40, p<0.001). This difference was statistically significant (z = 3.98, p<0.001). The ratings for intelligence done by both men and women were highly correlated (r = 0.88, p<0.001), therefore we decided to analyse the ratings of both sexes together."
This I found curious. Apparently, women are judged almost entirely based on their attractiveness when it comes to their intelligence, even by other women. This is scientific proof that all women are good for are their looks
.To test the effect of intelligence on attractiveness, we regressed the attractiveness ratings on the IQ scores for general intelligence. The age of the photographed subject was added to the model as covariate. We found no effect of IQ on perceived attractiveness, either for men (F1,37 = 1.748, p = 0.139, η2 = 0.045) or for women (F1,37 = 0.346, p = 0.346, η2 = 0.024). The effect of age was not significant for women (p = 0.99) but close to significant for men (p = 0.062).
Two things to note here; One, obviously, your actual IQ plays no role in your perceived attractiveness, and plays a smaller role than you might expect when it comes to your perceived intelligence. Secondly, age affects men's physical attractiveness a decent bit more than it affects women's physical attractiveness, in case you needed more proof that the wall is a myth.
"We found no relationship between facial morphospace and IQ as measured by IQ test."
This is a bombshell however. Despite what people such as ITV have claimed, actual IQ and perceived attractiveness have NO CORRELATION. I know it's very common for us to denigrate every aspect of ourselves, but you have to understand that some of it just isn't factually true. Just because you ended up here DOES NOT NECESSARILY MAKE YOU LOW IQ, NOR DOES IT MAKE CHAD INTELLIGENT.
"Our raters were able to estimate intelligence with an accuracy higher then chance from static facial photographs of men but not from photos of women. At the same time, we found no differences in the abilities of men and women to assess intelligence from static facial photos: the ratings of both sexes were highly correlated, r = 0.88. Perceived intelligence positively correlated with attractiveness in both men and women. Even though this contrasts some previous findings [10], [11], [40], [41], we did not observe any significant correlation between measured IQ and attractiveness. However, it should be noted that evidence for a relationship between actual intelligence and physical attractiveness in adults seems rather weak. Zebrowitz et al [10] did not find any significant correlation between perceived intelligence and attractiveness in individuals older than 18 years, i.e. middle adulthood (30 to 40) and later adulthood (52 to 60); however Zebrowitz et al did not examine individuals of a similar age bracket to our study (21.4 years in average). The existence of a correlation between attractiveness and intelligence in the age cohort from 19 to 29 years would appear questionable at the very least. Moreover, meta-analytic study has shown that physical attractiveness is not correlated to actual intellectual competence in adults, but is modestly correlated in children [15]. Similarly, other studies have reported close to zero correlation between attractiveness and actual intelligence in adults"
More proof supporting my prior statement.
"
Though we were not able to objectively detect an association between IQ and facial morphology, we can provide a statistically supported description of the stereotype of an intelligent-looking face. Our data suggest that a clear mental image how a smart face should look does exist for both men and women within the community of human raters. The intelligence-stereotype shows the same transformations in facial shape space for both men and women. In both sexes, a narrower face with a thinner chin and a larger prolonged nose characterizes the predicted stereotype of high-intelligence, while a rather oval and broader face with a massive chin and a smallish nose characterizes the prediction of low-intelligence (see Figs. 2 and and3).3). There also seems to be a correlation between semblances of emotions of joy or anger in perceptions of high or low intelligence in faces, respectively. The ‘high intelligence’ faces appear to be smiling more than the ‘low intelligence’ faces. A similar pattern was described for the perception of trustworthiness [37]. Perceived intelligence correlates with perceived trustworthiness and happiness. Conversely, low-intelligence faces are perceived as untrustworthy and considered angrier [42]. Moreover, perceived intelligence was also shown to be positively associated with perceived friendliness and sense of humour in both male and female faces but negatively related with perceived dominance in faces of women [43].
The face shape associated with a higher perception of intelligence also shows the characteristics of higher perception of attractiveness, while the face shape associated with a lower perception of intelligence shows traits of higher perceived dominance. The positive correlation with attractiveness and trustworthiness and negative correlation with dominance may explain the attribution of higher intelligence to longer, narrower faces."
tl;dr, more compact faces are seen as unintelligent, while longer and narrower faces are seen as more intelligent.
"The quadratic shape of the negative relationship between perceived intelligence and IQ points at the constraints that limit the preference of men with a very high IQ. Men with an IQ higher than 140 are perceived as relatively less intelligent (see Fig. 4.), which can reflect an adaptation to an upper intelligence limit as men with an extremely high IQ could find such practical tasks, such as the care and protection of women and offspring, less rewarding. "
This is something I also found interesting, apparently freakishly intelligent members of society are seen as unintelligent by society at large. I wonder how they gain this impression from those members of society?
"Another option is that women are pervasively judged according to their attractiveness. The strong halo effect of attractiveness may thus prevent an accurate assessment of the intelligence of women. This seems to be supported by a significantly higher correlation of perceived intelligence with attractiveness in women's faces (r = 0.901) in comparison to that in men's faces (r = 0.502)."
All toilets are good for are their looks lmao.
"To conclude, humans were able to estimate actual intelligence from facial photographs of men but not women. The attractiveness ratings were not statistically related to measured intelligence in both men and women. No difference between men and women existed in the raters' ability to assess intelligence, and no specific traits that correlated with real intelligence were detected with standard geometric morphometric methods. Men and women with specific facial traits were perceived as highly intelligent. However, these faces of supposed high and low intelligence probably represent nothing more than a cultural stereotype because these morphological traits do not correlate with the real intelligence of the subjects."
tl;dr for the whole thing: Your appearance does not play a role in your actual IQ, however, it plays a sizeable role in your perceived IQ. Additionally, the perception of a woman's IQ is determined almost entirely by her appearance, meanwhile in men, it plays a large role, however, it does not determine the entirety of it.
