Sunday, December 14, 2025

Invisible Women: Data Bias In A World Designed For Men by Caroline Criado Perez

 


  In the year 2017 the first female head of London’s Fire Brigade, Dany Cotton, suggested that we should replace the term “fireman” with the now standard “firefighter.” As a result of her suggestion, she was flooded with hate mail.

 When in 2013 Caroline Criado Perez campaigned to have a female historical figure on the back of English banknotes some men got so angry that they felt compelled to threaten her with rape, mutilation and death.

 According to an article in The Independent “humans evolved to have an instinct for deadly violence”. The article shared the statements of an academic paper that revealed that “humans have evolved to be six times more deadly to their own species than the average mammal.” However, this generalization may well apply to men, not necessarily to women. A thirty-year analysis of murder in Sweden found that nine out of ten murders are committed by men. Similar statistics were revealed by studies in the United Kingdom, Australia and the United States of America.

   The world and the study of history are designed to fit a male narrative that does not represent women and does not take into consideration the needs of women. The male perspective is seen as universal while the female one is considered the “niche”. Biases that benefit men and ignore women drive policies, research, employment, and other fields. These biases have serious consequences for women’s health, lifestyle, survival, employment, safety and several other factors.

  It is time to wake up to this reality and work to change this dysfunctional situation from the inside out. Caroline Criado Perez’s book is an excellent resource to become aware, to reflect on the topic and to be inspired to promote changes.

   When we hear generalizations about men, we are expected to assume that the statements apply to women as well, but we should not assume that. There are several examples to illustrate this.

  “We call the eighteenth century 'the Enlightenment', even though it only expanded the rights of men and narrowed the rights of women, who were denied control of their property and earnings and barred from higher education and professional training.” Even though women comprise half of the population we are expected to study history from a male perspective and we are expected to repeat information that does not reflect the truth. One example of this is the worn-out statement that Ancient Greece was a “democracy". Women were not even allowed to vote in Ancient Greece.

  These biases in favor of men translate into medicine, education, politics and social policies that continue to make women irrelevant despite the fact that they make up half of the population. Let’s examine this topic carefully.



  The accomplishments of women have been ignored or, in many cases, they were attributed to men. For example, textbooks routinely name Thomas Hunt Morgan as the person who discovered that sex was determined by chromosomes rather than environment. Yet it was Nettie Stevens the woman who accomplished this by experimenting with mealworms. The correspondence between them shows she was the one who did the work to prove it.       

 Cecilia Payne-Gaposchkin discovered that the sun is predominantly composed of hydrogen, but, not surprisingly, the discovery is credited to her male supervisor.

 Rosalind Franklin was the scientist who researched and described the structure of DNA—not Watson and Crick. Watson and Crick stole her work and took advantage of her discovery. They were the ones who received the Nobel Prize despite the fact that Rosalind Franklin did the work.

   The study of history shows that facts have been distorted to benefit men and to disempower women, and to perpetuate the false belief that women are not as competent as men. Therefore, women are often “instructed” to use men as role models in order to succeed. Yet there is no scientific evidence that shows that men are superior to women.

   Women are expected to behave more “like men” to be respected. Why? Research shows that when women “behave like men”, they are often criticized and judged differently, which sets the stage for more biases, stereotyping and unfair discrimination against them.

 Women as leaders

   Research shows that the potential and achievements of women are neglected to the detriment of society. Research published in 2018 by Boston Consulting Group found that “although on average female business owners receive less than half the level of investment their male counterparts get, they produce more than twice the revenue.” For every dollar of funding, female-owned start-ups generate seventy-eight cents compared to male-owned start-ups, which generate thirty-one cents. Women also perform better over time, generating ten percent more in cumulative revenue over a five-year period. This may be because women are better suited for leadership roles according to a Norwegian study. The BI Norwegian Business School concluded that women were better leaders than men. The study identified the five key traits of a successful leader: emotional stability, extraversion, openness to new experiences, agreeableness, and conscientiousness. Women scored higher than men in four out of the five.

 Biases at schools

 Unfortunately, schools teach little girls that they are not as brilliant as boys. Brilliance bias is taught to children at an early age (check page 100 for details):

 “A US study found that when girls start school at the age of five, they are likely as five-year-old boys to think women could be ‘really really smart.’ By the time they turn six, something changes. They start doubting their gender so much that they start limiting themselves.”

 Why I recommend Invisible Women

   Invisible Women is a carefully researched book that provides the statistics to acknowledge that the biases against women are real. Yet our experiences, observations and reflections are never enough, so Caroline Criado Perez put the research together to support our voices. She also adds the stories and experiences of several women to boost the power of her book.

   


 The Myth of Meritocracy

One of the long-standing myths appears to be the one on meritocracy.

  In the 1950s and 1960s there were only one or two female musicians in the New York Philharmonic Orchestra. In the 1970s somebody had the brilliant idea of using a screen for the auditions to select the musicians. That is when the number of female musicians started to go up.

  The biases against women are pervasive and irrational.

“Women are asked to do more undervalued admin work than their male colleagues. If they refuse, they are penalized and considered “unlikeable”. This is a problem across a range of workplaces: women and in particular ethnic minorities do the ‘housekeeping’.”

 The gender double standards influence the way women are perceived and judged by others. For this reason, gender double standards harm women and impact society as a whole.

 “Female professors are penalized if they are not deemed sufficiently warm and accessible, but if they are warm and accessible they can be penalized for not appearing authoritative or professional. On the other hand, appearing authoritative and knowledgeable as a woman can result in student disapproval, because this violates gendered expectations.”

  Men, on the other hand, benefit from what we call positive discrimination toward them. “Less effective male professors routinely receive higher student evaluations than more effective female teachers.”

 An analysis of 14 million reviews on the website RateMyProfessors.com found that female professors are more likely to be labeled as ‘harsh’, ‘unfair’, ‘strict’, ‘mean’ and ‘annoying’. Male professors are more often perceived as ‘brilliant’, ‘intelligent’, ‘smart’ and a ‘genius’.

 

Bias in the news media

 A report from 2015 done by the Global Media Monitoring Project evaluated the world’s print and broadcast media for its representation of women and found that only 24 percent of the persons heard, read about or seen in newspaper, television and radio news were women. They report their findings every five years and it was not different from the report obtained in 2010. I decided to check their latest report. No progress has been made for women and girls in the news media.


 Bias in textbooks

A US study of eighteen widely used high-school history textbooks published between 1960 and 1990 found that pictures of named men outnumbered pictures of named women by a ratio of about 18 to 100 and that only 9 percent of the names in the indexes were women.

 

Unpaid work

Research shows that women do most of the unpaid work that is needed to keep the foundation of society strong. This is not acknowledged or considered in the GDP of a country, but it plays an essential role in society.

 Data showed that in India 66 percent of women’s work time is spent on unpaid labour, while only 12 percent of men’s work is unpaid. In Italy 61 percent of women’s work is unpaid compared to 23 percent of men’s. In France 57 percent of their work is unpaid compared to 38 percent of men’s.

On October 24 1975 most women in Iceland decided to take the day off. They decided that they would do no work. No paid work but also no cooking, no cleaning, no child care. Ninety percent of the women took part in the strike. Twenty-five thousand women gathered for a rally. A year later the country passed the Gender Equality Act, which outlawed sex discrimination in workplaces and schools.

 

 

Why do people take women’s time for granted?

 Just like men, women have bills to pay. They also have family and job responsibilities. Women even volunteer more of their time than men, so why do people think it is okay to ask women to work for no pay? There is nothing “feminist” about expecting women to work for free.

 Women have a right to their time and they have no obligation to please others.

  When I stopped allowing comments on my blog ten years ago to avoid wasting my time on bullies, a follower decided she would not follow my blog anymore. I explained to her that I had no time to deal with bullies and she told me that I was supposed to scan the comments first and then decide if I would publish them or not. (Yes! Men are not the only ones who love to mansplain women). Why did she assume that I had so much time in my hands? Again, why do people out there take women’s time for granted?

 

Women in the healthcare system

There is a chapter about how women’s symptoms are consistently disregarded, and how their medical conditions go undiagnosed for too long because the medical system does not care enough about their complaints. There are statistics as well as several experiences shared by women.

Caroline Criado Perez did a great job of revealing the gender disparities in the medical field, both in healthcare and research.

 

Women in pandemics, natural disasters and wars

Caroline Criado Perez shares staggering statistics and stories about how women are treated under these precarious conditions. Chapter 16 is entitled “It is not the disaster that kills you”. I highly recommend it. Read every page.

 Violence against women increases in the chaos and social breakdown that accompany natural disasters. I was shocked to learn that several women after hurricane Katrina were sexually assaulted. To make matters worse, during Hurricane Katrina local rape centers had to close.

 “The data gap when it comes to sexual abuse is compounded in crisis settings by powerful men who blur the lines between aid and sexual assault.”

  In Sri Lanka swimming and tree climbing are predominantly taught to men and boys. When the December 2004 tsunami hit, men and boys were better able to survive. The tsunami killed four times more women than men. There is also social prejudice in Bangladesh against women learning to swim.

 

 Awards and recognition

Invisible Women by Caroline Criado Perez was the winner of 2019 Royal Society Science Book Prize; it was the finalist for the LA Times Book Prize and the Orwell Prize. It was also longlisted for the Andrew Carnegie Medals for Excellence in Nonfiction.

 

If you enjoyed this post, feel free to check my writing on the following books:

 

Anne of Avonlea


Not my Type


Lessons in Chemistry


 100 Plants to Feed the Birds