Adverse Impact

Adverse impact refers to a substantially different rate of selection in employment that works to the disadvantage of members of a certain race, sex, or ethnic group. It is often unintentional and occurs when the same employment practice or selection procedure results in different outcomes for different groups. Under U.S. law, if a practice is found to have an adverse impact, it needs to be directly related to job performance and justified by business necessity.

Last updated: August 02, 2023 11 min read

What Is Adverse Impact?

Adverse Impact refers to a concept in employment practices where certain actions, policies or practices are neutral in their wording or appearance, but disproportionately affect a protected class such as race, ethnicity, age, gender or disability. These can inadvertently lead to discrimination, as they result in less favorable employment opportunities for the members of such categories, even though there is no clear intent to discriminate. The term is largely used in the context of hiring, promotion, training, and other such processes in the workplace.

What Is the History of Adverse Impact?

The concept of "adverse impact" emerged from the Civil Rights Act of 1964 in the United States. Title VII of this Act prohibits employment discrimination based on race, color, religion, sex and national origin. Initially, the focus was mainly on direct, intentional discrimination practices, also known as "disparate treatment."

However, in 1971, the focus expanded to include indirect discrimination with the U.S. Supreme Court's ruling in the Griggs vs. Duke Power Co case. The court ruled that the company's requirement for a high school diploma or passing of intelligence tests as a condition of employment or internal transfer did not directly relate to the job performance, and was discriminatory in its impact (adverse impact) on African American employees.

This ruling gave rise to the concept of adverse impact, which looks at the outcomes of employment practices, regardless of intent. It helps to identify if seemingly neutral practices or policies disproportionately disadvantage certain groups. The Uniform Guidelines on Employee Selection Procedures were established in 1978 by the federal agencies enforcing Title VII, providing a statistical framework to evaluate adverse impact.

Since then, adverse impact analysis has become a critical part of ensuring fair employment practices in various facets such as hiring, promotion, compensation, and training. With growing emphasis on diversity and inclusion, the importance of understanding and managing adverse impact in organizations has only increased.

How Do You Calculate Adverse Impact?

Adverse impact is typically calculated using the "four-fifths rule" or the 80% rule as provided by the Uniform Guidelines on Employee Selection Procedures in the U.S.

Here's the step-by-step process:

  1. Calculate the rate of success for each group (minority and majority). This is the number of successful applicants (hired, promoted, etc.) divided by the total number of applicants from that group.

  2. Divide the success rate of the minority group by the success rate of the majority group.

  3. If the result is less than 80% (0.80), then there is evidence of potential adverse impact against the minority group.

Please note, this rule is a guideline, and a finding less than 80% is not definitive proof of discrimination, but it does suggest that further investigation is warranted. Other statistical analyses may also be used to assess adverse impact.

What Are Some Examples of Adverse Impact?

  1. Physical Requirements: A job description requiring employees to lift 50 pounds repeatedly throughout the day might disproportionately screen out female applicants, resulting in adverse impact if the requirement isn't directly necessary for performing critical job tasks.

  2. Education Requirements: If a position unnecessarily requires a Bachelor's degree, this may adversely affect candidates from socio-economic backgrounds with lesser access to higher education.

  3. Cognitive Ability Tests: While these tests can be effective predictors of job performance, they can sometimes lead to adverse impact against certain racial or ethnic groups.

  4. Employment Examinations: A written test used to screen candidates for a certain position might disproportionately fail people for whom English is a second language, whereas the language skills tested may not be relevant to the job's requirements.

  5. Credit Checks: The use of credit checks might disproportionately exclude certain socio-economic or racial groups from being hired, potentially causing an adverse impact if the credit history is not relevant to the job.

  6. Criminal Background Checks: While it's reasonable for employers to know if applicants have a criminal history, blanket policies that exclude anyone with a criminal background can disproportionately impact male applicants, certain racial or ethnic groups, and could result in adverse impact if the convictions are not job-related.

Remember, for a practice to be considered having an adverse impact, it must not only disproportionately affect a protected group but also be unnecessary for the job or not job-related.

What's the Difference Between Adverse Impact and Disparate Impact?

In the context of employment law and practice, Adverse Impact and Disparate Impact essentially refer to the same concept: a condition where employment practices that appear neutral have a discriminatory impact on a protected group.

The term "adverse impact" is mostly used in the field of Human Resources and Industrial and Organizational Psychology. It outlines a statistical phenomenon where a disproportional rate of selection in hiring, promotion, or other employment decision works to the disadvantage of certain racial, ethnic, or gender groups.

On the other hand, "disparate impact" is a legal term coined by the courts and often used in legal proceedings related to employment discrimination cases. It refers to situations where discrimination is inferred by the results of the employment practice, even in the absence of intent to discriminate.

In summary, while these terms are often used interchangeably, the context and usage might slightly differ depending on whether you are approaching it from a human resources or a legal perspective.

Can You Provide Some Specific Instances Demonstrating Disparate Impact in Employment Practices?

Certainly, here are three specific examples that demonstrate disparate impact:

  1. Griggs vs. Duke Power Co (1971): This is the landmark U.S. Supreme Court case that established the concept of disparate impact in employment practices. Duke Power Company had imposed high school education requirements and aptitude test scores for internal transfers and promotions, requirements that were not directly related to job performance. These policies disproportionately excluded African American employees, thus demonstrating a disparate impact based on race.

  2. EEOC vs. Dial Corporation (2005): The Dial Corporation was found to have physically demanding tests as a prerequisite for hiring at a soap-making facility, which disproportionately screened out female applicants. The court ruled that these tests were not necessary for the position and hence, they not only violated Title VII but also demonstrated a disparate impact based on gender.

  3. Connecticut vs. Teal (1982): Connecticut's Department of Income Maintenance had an examination for employees seeking promotion. Black employees passed at a lower rate than white employees, which led to a case of disparate impact. This case brought forth the notion of "bottom-line" or overall impact on a group, and ruled that individual discriminatory practices couldn't be excused if they led to a non-discriminatory overall result.

What Distinguishes Adverse Impact From Intentional Discrimination in Employment Practices?

The primary difference between Adverse Impact (also known as Disparate Impact) and Intentional Discrimination (also known as Disparate Treatment) lies in the element of intent.

Adverse Impact: This refers to the consequences of an employment practice that appear neutral but have a discriminatory effect on a protected group. It's important to note that the discrimination is often unintentional in these cases. The adverse impact is observed through statistical evidence, for example, when a protected group is less likely to be hired, selected for training, promoted or retained compared to a non-protected group.

Intentional Discrimination (Disparate Treatment): In these cases, discrimination is deliberate and intentional. Employers knowingly and willfully treat individuals less favorably because of their race, color, religion, sex, national origin, age, or disability status. It's characterised by prejudiced thoughts, attitudes, and bias in the treatment of individuals or groups based on their protected characteristics.

While both are considered unlawful under Title VII of the Civil Rights Act of 1964, the major difference lies in the intent behind the actions and practices.

What Are Some Specific Examples of Discrimination in Various Aspects of Employment?

Sure, here are some specific examples of discrimination in various aspects of employment that employers must avoid:

  1. Recruitment and Selection: Discriminating against applicants based on race, color, religion, sex, age, national origin, or disability status. Using biased job postings, pre-employment inquiries, or selection criteria.

    Example: Preferring to select male over female candidates for a field sales job owing to unfounded preconceived notions.

  2. Promotion, Advancement, and Career Development: Discrimination in the promotion process based on protected characteristics rather than merit or job performance.

    Example: An employer overlooked an eligible candidate of an ethnic minority for a senior executive position because of stereotypical beliefs about leadership abilities.

  3. Training and Development: Allocating training opportunities unequally, with favored groups receiving greater opportunities than others.

    Example: A company provides advanced technical training sessions primarily for young employees, leaving out older workers due to incorrect assumptions about their adaptability to learn new technology.

  4. Pay and Benefits: Offering unequal pay or benefits to equally qualified employees doing the same job.

    Example: A female engineer paid less than her male counterpart for the same work.

  5. Working Conditions and Environment: Creating or fostering a hostile work environment that singles out individuals based on their protected characteristics.

    Example: Workers subjected to ongoing racial slurs or offensive jokes at work.

  6. Termination and Redundancy: Making termination or redundancy decisions based on factors other than job performance or economic necessity.

    Example: An employee laid off shortly after revealing their disability, despite their solid job performance.

  7. Retaliation: Punishing an employee for participating in a protected activity like filing a complaint of discrimination.

    Example: An employer demotes an employee after they reported sexual harassment.

Each of these practices can be considered discriminatory if they are based on the employees' protected characteristics rather than individual abilities or job performance.

What Factors or Employment Practices Can Lead to an Adverse Impact Situation?

Several employment practices can potentially lead to an adverse impact situation. Here are a few examples:

  1. Selection Tests: Using various types of aptitude or ability tests as part of the selection process can sometimes disproportionately eliminate candidates from certain racial, ethnic, or gender groups.

  2. Education Requirements: Requiring a level of education that is not necessary for job performance can disproportionately eliminate individuals from lower socioeconomic backgrounds or certain racial and ethnic groups.

  3. Experience Requirements: Requiring experience in a specific area can disproportionately impact those who have not been given prior opportunities in that field, often women or minorities.

  4. Physical Requirements: Certain physical requirements can disproportionately impact female or older candidates, if these requirements are not necessary for key job activities.

  5. Criminal Background Checks: Policies that exclude candidates with any criminal background, regardless of the nature of the offense or its relevance to the job, can disproportionately impact certain racial or ethnic groups.

  6. Credit Checks: Similar to criminal checks, credit checks can disproportionately impact certain socio-economic groups if not directly relevant to the job.

It's crucial for employers to regularly examine these practices from an adverse impact perspective. If disparate impact is found, the criteria leading to it should be closely examined and validated for job relevance. If not, modifications should be implemented to remove the potential bias.

What Factors Contribute to the Occurrence of Adverse Impact in Employment Practices?

Adverse Impact in employment practices occurs when seemingly neutral employment decisions disproportionately affect a certain group protected under Title VII of the Civil Rights Act. Factors that can contribute include:

  1. Discriminatory Policies: If an organization retains policies that, although appearing fair on the surface, disproportionately affect a certain group of individuals, it can lead to adverse impact.

  2. Biased Decision Making: Even unintentional bias within the selection process can lead to adverse impact. This can happen, for instance, when selecting candidates for an interview or choosing who to promote.

  3. Use of Invalid Selection Tools: This can include using aptitude tests, interviews, or other selection methods that are not relevant to the job or not verified for their fairness across different groups.

  4. Lack of Diversity Initiatives: When organizations don't take proactive steps to ensure diversity in the workplace, adverse impact can more easily occur.

  5. Job Requirements: Adding unnecessary job requirements can disproportionately affect certain groups. For instance, requiring physical abilities unnecessary for the job could exclude candidates based on age or gender.

  6. Over-reliance on Referrals: If an organization's existing workforce lacks diversity, relying heavily on employee referrals for new hires could perpetuate these imbalances.

  7. Unstructured Interviews: This subjective and potentially inconsistent method can unintentionally lead to decisions influenced by biases.

It is crucial for organizations to regularly review their employment practices to identify and correct potential sources of adverse impact.

What Are the Detrimental Consequences of Adverse Impact on Businesses and Employee Morale?

Adverse impact can have several negative consequences on businesses and employee morale:

  1. Legal Consequences: One of the direct and serious consequences of adverse impact is the potential for legal action. Lawsuits on the grounds of discrimination can result in negative publicity, hefty legal fees, settlements, and fines.

  2. Diversity and Inclusion: Adverse impact could limit diversity in the workforce. A diverse and inclusive work force can lead to more creative and innovative solutions, better decision-making, and a greater understanding of diverse markets.

  3. Morale and Productivity: Adverse impact could adversely affect morale and productivity. If employees perceive that the company isn’t committed to fairness and equity, it can result in decreased morale, lower job satisfaction, reduced productivity, and increased turnover.

  4. Reputation and Brand: Organizations known for unfair employment practices might find it harder to attract and retain top talent. Such negative reputation could also affect the organisation's relationship with clients, customers, and shareholders.

  5. Unrealized Potential: If selection processes inadvertently screen out potentially qualified candidates of a protected group, the business could miss out on talent.

  6. Culture of Distrust: An adverse impact could cultivate a culture of mistrust and lack of respect within the organization, which again, can impact productivity and morale.

Avoiding adverse impact in employment practices isn’t just a legal necessity, but also contributes to the overall health and success of the organization.

What Strategies Can a Company Implement to Mitigate and Rectify Adverse Impact in Employment?

To mitigate and rectify adverse impact, a company can implement the following strategies:

  1. Analyze Your Practices: Regularly evaluate hiring, advancement, and other employment practices to identify any that may be causing adverse impact. Use statistical analysis to see if a specific group is receiving less favorable treatment.

  2. Validate Selection Tools: Ensure your selection tools (like tests, interviews, and assessments) are job-relevant and validated. They should measure qualities necessary for job performance rather than inadvertently screening out certain groups.

  3. Training: Implement diversity and inclusion training programs to raise awareness about unconscious bias and improve interviewing and decision-making processes.

  4. Structured Interviews: A structured interview where all candidates are asked the same questions can help minimize bias and promote fair candidate evaluation.

  5. Clear Job Descriptions: Craft precise and clear job descriptions, highlighting necessary and desired skills. This helps potential applicants to understand the requirements and responsibilities of the post.

  6. Alternative Practices: If any of your practices are causing adverse impact, consider whether there are alternative methods that do not have the same effect but still fulfill the same business necessity.

  7. Affirmative Action Plans: Develop an affirmative action plan, if legally required or voluntarily, to proactively address historical disadvantages faced by certain groups.

  8. Diverse Selection Panels: Use diverse panels when interviewing, which can help reduce individual bias.

  9. Transparent Policies: Ensure your policies related to hiring, promotion, compensation, and dismissal are transparent and shared with all employees.

By regularly reviewing their practices and making changes as necessary, companies can help to mitigate and rectify adverse impact.

Which Employers Are Likely to Be Affected by Adverse Impact?

All employers, regardless of their size or the nature of their business, could potentially be affected by adverse impact if their employment policies and practices unintentionally lead to a discriminatory outcome. However, certain employers might be more susceptible, particularly:

  1. Large Organizations: Large organizations with standardized hiring and promotion processes may inadvertently incorporate criteria resulting in adverse impacts. Moreover, adverse impact is often identified through statistical analysis, which requires larger sample sizes to detect.

  2. Employers With Structured Selection Processes: Organizations that use structured tests, qualifications, or other metrics for selection or advancement may unwittingly introduce adverse impact if these measures aren't carefully validated for potential bias.

  3. Organizations with High Turnover Rates: These companies often hire in large numbers and may use selection procedures that inadvertently disadvantage certain groups.

  4. Federal Contractors: Businesses that hold federal contracts are required to abide by various affirmative action and equal opportunity laws. They need to closely monitor their personnel decisions for any signs of adverse impact.

  5. Public Sector Employers: Similar to federal contractors, public sector employers must operate under strict regulations, ensuring their practices do not have an adverse impact.

Simply put, while any employer can face issues related to adverse impact, those with more structured or regulated selection processes require more vigilance to ensure their practices do not result in discriminatory outcomes.

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