Short answer

Prioritize designing for the most vulnerable or disadvantaged users, as this often leads to more robust and universally beneficial designs.

Field
Classic Design
Source
eYLS (Yale Law School) (2010)
Method
Conceptual analysis and critique
Evidence
Strong effect

A rigid adherence to treating everyone identically, without considering individual circumstances or abilities, can inadvertently perpetuate or even exacerbate existing inequalities. This classic design research insight is drawn from a 2010 study published in eYLS (Yale Law School). Using Conceptual analysis and critique, researchers explored how this design variable affects real-world outcomes. The key design takeaway: Prioritize designing for the most vulnerable or disadvantaged users, as this often leads to more robust and universally beneficial designs.

Study
Classic DesignHigh ImpactStrong effect

The 'Sameness' Fallacy: Why Equal Treatment Fails Vulnerable Users

A rigid adherence to treating everyone identically, without considering individual circumstances or abilities, can inadvertently perpetuate or even exacerbate existing inequalities.

eYLS (Yale Law School) · 2010

01

Key Findings

  • 01Equal protection doctrine often presumes an equivalence of position and possibilities among individuals.
  • 02A 'sameness-of-treatment' approach fails to account for differences in circumstances and abilities.
  • 03This narrow view of equality is insufficient to combat existing societal inequalities.
02

Application

Design takeaway

Prioritize designing for the most vulnerable or disadvantaged users, as this often leads to more robust and universally beneficial designs.

How to apply

When defining user groups, go beyond demographics to consider varying levels of physical ability, cognitive capacity, technical literacy, and socio-economic status. Design interfaces and products that offer flexibility and support for these differences.

Project actions

  • 01When researching users, don't just ask what they want, but also observe what challenges they face.
  • 02Consider how your design might be used by someone with a disability, or someone who is new to technology.
03

Method & Evidence

AimTo what extent does a strict interpretation of 'equal treatment' in design fail to address the needs of vulnerable user groups?
MethodConceptual analysis and critique
ProcedureThe research critically examines legal frameworks of equal protection, highlighting how a focus on identical treatment overlooks contextual differences and existing disparities, and extrapolates these principles to broader design contexts.
ContextSocio-legal theory applied to design principles

Variables

IVDesign approach (e.g., uniform vs. adaptive)
DVUser experience and perceived fairness
CVUser demographics, task complexity
04

Strengths & Limitations

Strengths

  • +Provides a strong theoretical foundation for understanding equity in design.
  • +Challenges conventional assumptions about equality in design practice.

Limitations

It can be challenging to identify all potential user vulnerabilities without extensive user testing and diverse participant recruitment.

Reliability & validity

The validity of this insight relies on its conceptual coherence and its resonance with observed user experiences. Reliability in application would depend on consistent application of user-centered research methods to uncover vulnerabilities.

Think critically

If a design is intended to be universally accessible, what are the ethical considerations when it still proves more difficult for certain user groups to use effectively?

05

Design Principles

"Equitable design acknowledges and accommodates user differences to achieve fair outcomes."

In design practice, this insight challenges the notion that a one-size-fits-all approach is inherently equitable. Designers must move beyond superficial sameness to understand the diverse needs and vulnerabilities of their user base, ensuring that solutions are truly inclusive and supportive.

06

What This Means for Your Design

Just because everyone gets the same thing doesn't mean it's fair. Some people need different things to be able to use something properly.

How to use in your project

  • 1.Reference this research when discussing the importance of user research and how to identify diverse user needs.
  • 2.Use it to justify design choices that cater to specific user vulnerabilities or disadvantages.
07

Add to My Project

08

Quick Cite

Paragraph starter

The principle of 'sameness-of-treatment' in design, analogous to legal equal protection, can inadvertently create barriers for vulnerable user groups by failing to account for differing circumstances and abilities. This research highlights the necessity of moving beyond uniform solutions to embrace equitable design, which actively accommodates diverse needs and aims for fair outcomes for all users, particularly those facing disadvantages.

09

Source

eYLS (Yale Law School)

The Vulnerable Subject and the Responsive State

journal · 2010

View source

Questions About This Research

What does the research say about the 'sameness' fallacy: why equal treatment fails vulnerable users?
Prioritize designing for the most vulnerable or disadvantaged users, as this often leads to more robust and universally beneficial designs. Evidence: eYLS (Yale Law School) (2010).
Why does "The 'Sameness' Fallacy: Why Equal Treatment Fails Vulnerable Users" matter for design?
In design practice, this insight challenges the notion that a one-size-fits-all approach is inherently equitable. Designers must move beyond superficial sameness to understand the diverse needs and vulnerabilities of their user base, ensuring that solutions are truly inclusive and supportive.
How can designers apply this research?
Prioritize designing for the most vulnerable or disadvantaged users, as this often leads to more robust and universally beneficial designs.
What were the main findings?
Equal protection doctrine often presumes an equivalence of position and possibilities among individuals.. A 'sameness-of-treatment' approach fails to account for differences in circumstances and abilities.. This narrow view of equality is insufficient to combat existing societal inequalities.
What research method was used?
Conceptual analysis and critique.
How strong is the evidence?
Evidence strength is rated Strong effect, based on a 2010 journal from eYLS (Yale Law School).
What should I do differently in my next project?
When defining user groups, go beyond demographics to consider varying levels of physical ability, cognitive capacity, technical literacy, and socio-economic status. Design interfaces and products that offer flexibility and support for these differences.
What are the limitations?
The original research is rooted in legal theory and may require significant translation to direct design application.