Canadian Physics Counts: An exploration of the diverse identities of physics students and professionals in Canada

This paper presents the findings of "Canadian Physics Counts," the first nationwide survey of the Canadian physics community, which reveals significant underrepresentation of Black, Indigenous, and gender-diverse individuals, highlights a severe lack of accommodations for those with disabilities, and underscores the urgent need for targeted interventions to retain a diverse workforce.

The Gist

Imagine the field of physics as a massive, high-stakes orchestra. For a long time, the music has been played by a very specific group of people: mostly men, mostly white, and mostly from similar backgrounds. While the music (the science) has been brilliant, the orchestra has been missing many talented musicians who could bring new sounds, rhythms, and perspectives to the ensemble.

This paper, titled "Canadian Physics Counts," is like the orchestra's first-ever, comprehensive headcount. Instead of just guessing who is in the room, the researchers asked every musician (students and professionals) to raise their hand and describe exactly who they are.

Here is the story of what they found, broken down into simple concepts:

1. The "Missing Musicians" (The Data Gap)

For years, we knew the orchestra wasn't diverse, but we didn't have the exact sheet music to prove it. Previous surveys in Canada were like counting heads but only asking, "Are you a man or a woman?" They missed everything else: race, sexual orientation, disability, and gender identity beyond the binary.

This study was the first to ask the full questions: Who are you really? They surveyed over 2,500 people across Canada, from high schoolers dreaming of physics to professors and industry experts.

2. The "Leaky Pipeline" (Where People Drop Out)

Imagine a funnel. At the wide top, you have a diverse group of students entering physics. As they move down the funnel toward becoming professors or industry leaders, the group gets narrower and less diverse.

• The Findings: The study found that while the "student" section of the funnel is getting more colorful and diverse, the "professional" section at the bottom is still mostly white men.
• The Drop-off: When students of color (Black, Indigenous, and People of Colour) try to move from being students to becoming professionals, their numbers drop by half. It's as if the hallway to the professor's office has a hidden door that only some people can open.
• The Exception: White women managed to stay in the funnel at a steady rate, but for everyone else, the path gets much harder.

3. The "Invisible Groups" (Black and Indigenous Physicists)

The study shone a light on groups that were almost invisible in the data before.

• The Numbers: Only about 0.2% of the physicists surveyed identified as Black, and 0.3% as Indigenous.
• The Reality: In the general Canadian population, these groups make up a much larger chunk of the pie. In physics, they are severely underrepresented. It's like trying to build a house but realizing you have almost no bricks of a certain color, even though you need them to make the structure strong.

4. The "Rainbow Spectrum" (Gender and Sexual Diversity)

The study also looked at the "rainbow" of identities.

• Gender: They found more gender-diverse people (non-binary, transgender, etc.) in physics than in the general population, especially among students. It seems the younger generation is more comfortable bringing their whole selves to the lab.
• Sexual Orientation: About 20% of students identified as sexually diverse (gay, lesbian, bisexual, etc.), which is higher than the national average. Interestingly, bisexual women were the largest group within this category.

5. The "Accessibility Barrier" (Disability)

Imagine trying to play an instrument in a room where the chairs are too high, the lights are too bright, or the sheet music is in a language you can't read. That is what it's like for people with disabilities in physics.

• The Gap: Only about 8% of students and 5% of professionals identified as having a disability, compared to 22% of the general Canadian working population.
• The Intersection: The study found a powerful overlap: people who are both sexually diverse and disabled were much more likely to report having a disability than their straight peers.
• The Support: Even among those who did identify as disabled, very few received full accommodations. It's like asking for a ramp to get into the building, and being told, "We'll think about it," or "You have to climb the stairs like everyone else."

6. The "Double Trouble" (Intersectionality)

The most important lesson from this paper is Intersectionality. This is a fancy word for saying: Identities stack up.

• If you are a woman of color, or a disabled person who is also queer, you aren't just facing one barrier; you are facing a wall made of many bricks.
• The study found that one in four gender-diverse people from BIPOC (Black, Indigenous, and People of Colour) backgrounds also identified as disabled. This shows that we can't just fix "race" or just fix "gender"; we have to fix the whole system at once.

The Big Takeaway

The paper concludes with a hopeful but urgent message: The students are ready. The "future physicists" (the students) are more diverse, more open, and more ready to embrace inclusion than the current "old guard" of professionals.

However, if we don't fix the "leaky pipeline" now, we will lose these talented musicians. The orchestra needs to stop just counting heads and start fixing the seats, lowering the stage, and making sure everyone has a place to play.

In short: Physics in Canada is currently a club that is too exclusive. This study is the map showing exactly where the doors are locked, so we can finally unlock them and let the whole country's talent in.

Technical Summary

Here is a detailed technical summary of the research article "Canadian physics counts: an exploration of the diverse identities of physics students and professionals in Canada."

1. Problem Statement

Despite the quantitative nature of physics, there is a significant global lack of data regarding the demographic characteristics of underrepresented groups within the field. In Canada specifically, existing data is sparse, fragmented, and historically limited to binary gender categories (male/female). Previous reports (e.g., by the Canadian Association of Physicists or Statistics Canada) have failed to capture the intersectionality of identities such as race, sexual orientation, disability, and gender diversity. Consequently, there is an inability to understand how these identities intersect to create barriers, leading to persistent underrepresentation of Black, Indigenous, People of Colour (BIPOC), gender-diverse, and disabled individuals in Canadian physics.

2. Methodology

• Study Design: The authors conducted Canadian Physics Counts, the first national survey of equity, diversity, and inclusion (EDI) in the Canadian physics community.
• Participants: The study targeted two overarching groups:
  1. Students: Undergraduate, M.Sc., and Ph.D. students pursuing physics degrees at Canadian institutions.
  2. Working Professionals: Postdoctoral fellows, faculty, research staff, and professionals in government or the private sector holding a physics degree and residing in Canada.
• Sampling and Recruitment:
  • Recruitment utilized email invitations to Canadian Association of Physicists (CAP) members, all post-secondary physics departments, and institutional partners (e.g., Perimeter Institute, TRIUMF).
  • A "snowball method" was employed, encouraging respondents to share the survey link.
  • The survey was available in English and French.
• Data Collection:
  • Instrument: A self-report survey (38–51 questions) covering employment, education, and demographic characteristics (gender identity, sexual orientation, race/ethnicity, disability, first language, immigration status).
  • Ethical Considerations: Approved by the Dalhousie University Research Ethics Board. Anonymity was ensured by separating personally identifiable information from survey responses via an API linking system.
  • Sample Size: After removing duplicates, the final sample consisted of 2,532 respondents.
• Analytical Approach: The study employed an intersectional analysis, collapsing data into categories such as BIPOC (Black, Indigenous, People of Colour) and "Gender Diverse" (nonbinary, transgender, two-spirit, etc.) to maintain statistical power while acknowledging the limitations of broad categorization. Descriptive statistics were used to compare student vs. professional demographics and to contrast findings with Canadian Census data (noting that no inferential statistical tests against census data were performed).

3. Key Contributions

• First National Dataset: This is the first comprehensive dataset in Canada to capture nonbinary/gender-diverse identities, sexual orientation, and disability status within the physics community.
• Intersectional Framework: Unlike previous studies that treated demographics in isolation, this research explicitly analyzes how race, gender, sexuality, and ability intersect to shape the physics experience.
• Baseline for Policy: The study provides the necessary baseline data to inform recruitment strategies, retention policies, and interventions aimed at improving access to physics for marginalized groups.

4. Key Results

• Racial Representation (BIPOC):
  • Black and Indigenous Physicists: Representation is critically low. Only 0.2% of respondents identified as Black and 0.3% as Indigenous.
  • The "Leaky Pipeline": BIPOC representation drops precipitously (by approximately 50%) as individuals move from undergraduate/graduate student roles to professional roles. For example, BIPOC men dropped from 22% of students to 13% of professionals; BIPOC women dropped from 15% to 7%.
  • White Dominance: White men remain the majority in both student (34%) and professional (44%) cohorts, despite comprising roughly 50% of the general Canadian population.
• Gender Diversity:
  • Gender-Diverse Individuals: Comprise 3.5% of the total sample (higher than the general Canadian population estimate of ~0.33% for transgender/nonbinary).
  • Student vs. Professional: Gender-diverse representation is higher among students (approx. 5%) than professionals (1.4%), suggesting a potential attrition point for gender-diverse individuals entering the workforce.
• Sexual Orientation:
  • Sexually Diverse: 22% of students and 11% of professionals identified as sexually diverse (2SLGBTQIA+), significantly higher than the national average (4%).
  • Bisexuality: Bisexual women were the largest subgroup of sexually diverse respondents, outnumbering bisexual men significantly (15% of students vs. 4%).
• Disability:
  • Prevalence: 8% of students and 5% of professionals identified as disabled, compared to ~22% of the general working-age Canadian population.
  • Intersectionality: One in four BIPOC respondents from gender-diverse backgrounds identified as disabled.
  • Accommodations: Only 5% of disabled respondents reported receiving full accommodations. A significant portion (53%) reported not seeking accommodations, likely due to fear of negative outcomes or discomfort.
• Francophone Representation: French speakers were underrepresented (10% of respondents vs. 22% of the Canadian population), and BIPOC representation was significantly lower among French speakers (10.3%) compared to English speakers (33.3%).

5. Significance and Implications

• The "Double Bind" and Intersectionality: The data confirms that individuals with multiple marginalized identities (e.g., BIPOC women, disabled gender-diverse students) face compounded barriers. The study highlights that "White women" have maintained relatively stable representation across career stages, whereas BIPOC and gender-diverse individuals face significant attrition.
• Retention Crisis: The sharp decline in diversity from student to professional roles indicates that current academic and professional environments are failing to retain diverse talent. The "leaky pipeline" is not just about entry but about retention and advancement.
• Call to Action:
  • Disaggregation: Future research must move beyond broad "BIPOC" categories to address specific disparities (e.g., the unique underrepresentation of Black and Indigenous physicists).
  • Structural Change: Institutions must address accessibility (physical and systemic) for disabled physicists and create safer environments for disclosing disabilities and sexual orientations.
  • Role of Allies: The authors call on White men (who hold the majority of senior positions) and White women (who have benefited from past equity interventions) to leverage their privilege to advocate for systemic change and support the most marginalized groups.
• Limitations: The study relies on self-selection and snowball sampling, meaning the results may not be fully representative of the entire Canadian physics community (particularly industry/government sectors). However, the findings align with other smaller surveys, validating the trend of underrepresentation.

In conclusion, Canadian Physics Counts establishes that while the student body in Canadian physics is becoming more diverse, the professional workforce remains disproportionately White, male, cisgender, and non-disabled. The study underscores the urgent need for intersectional, data-driven policies to retain diverse physicists and ensure the future of the field reflects the diversity of the nation.