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Standardised vs. Standardized — What's the Difference?

By Fiza Rafique & Maham Liaqat — Updated on March 21, 2024
Standardised and Standardized both refer to making something conform to standards, but "standardised" is preferred in British English, while "standardized" is used in American English.
Standardised vs. Standardized — What's the Difference?

Difference Between Standardised and Standardized


Key Differences

Standardised spelling is predominantly used in British English, reflecting the UK's conventions in spelling and grammar. On the other hand, Standardized is the spelling preferred in American English, indicative of the linguistic differences between the two variants of English.
When it comes to educational testing, the term "standardised tests" is common in the UK, emphasizing the uniformity in testing conditions and scoring. Whereas, in the US, "standardized tests" are a critical component of the education system, aimed at assessing student performance across various levels.
In the context of industrial processes, British companies might discuss the importance of "standardised" procedures to ensure quality and efficiency. Meanwhile, American companies focus on "standardized" processes to achieve similar goals, highlighting a difference in terminology that does not impact the underlying concept.
Regarding healthcare, the UK often uses "standardised" to describe protocols and treatments that are uniform across the healthcare system. On the other hand, the US healthcare system refers to "standardized" protocols, which serve the same purpose of ensuring consistency and quality of care.
In the realm of technology and software, British English prefers "standardised" interfaces or protocols to ensure compatibility and interoperability among devices and systems. Conversely, in American English, "standardized" is used to describe similar efforts to achieve uniformity in technological specifications and protocols.

Comparison Chart





Usage in Education

Preferred in discussions of UK education systems
Common in the context of the US education system

Industrial Application

Used in British industry conversations
Utilized in American industrial contexts

Healthcare Context

Common in UK healthcare terminology
Preferred in US healthcare discussions

Compare with Definitions


Made uniform across different instances.
The school implemented standardised testing to fairly evaluate all students.


Established as a norm.
Standardized testing in schools has sparked much debate.


Adjusted to norms or standards.
Standardised procedures ensure consistency in product quality.


Made consistent across different areas.
Safety protocols were standardized to enhance workplace safety.


Established by authority as a rule.
The new safety protocols were standardised across all departments.


Adjusted to ensure uniformity.
The software update standardized the interface across devices.


Conforming to a model.
The parts from different suppliers were standardised for assembly efficiency.


Harmonized to a common standard.
The agency standardized the data format for easier analysis.


Regularized or made consistent.
Training sessions were standardised to maintain a high level of skill among employees.


Made to conform to a standard.
The company standardized its manufacturing process to increase productivity.


(British spelling) Designed in a standard manner or according to an official or accepted standard.


To cause to conform to a standard.


Simple past tense and past participle of standardise


To evaluate by comparing with a standard.


Brought into conformity with a standard;
Standardized education


Simple past tense and past participle of standardize


Capable of replacing or changing places with something else;
Interchangeable parts


Designed or constructed in a standard manner or according to an official standard


Brought into conformity with a standard;
Standardized education


Capable of replacing or changing places with something else;
Interchangeable parts

Common Curiosities

Can a test be both standardised and standardized?

Yes, a test can be described as both depending on whether British or American English is being used.

What does "standardised" mean?

"Standardised" means making something uniform or consistent, typically according to a set of norms or standards, mainly used in British English.

Why are there two spellings for "standardized"?

The two spellings reflect the linguistic differences between British and American English.

Are "standardised" and "standardized" interchangeable?

Yes, they are interchangeable but are used differently based on British or American English preferences.

Does the use of "standardised" vs. "standardized" affect the meaning?

No, the meaning remains the same; the choice of spelling depends on the variant of English being used.

Is the pronunciation of "standardised" and "standardized" different?

The pronunciation is very similar, with minor variations due to accent differences between British and American English.

How does standardization affect international business?

Standardization facilitates international business by ensuring compatibility and interoperability of products and services across borders.

Can a company standardize its practices internationally?

Yes, companies often standardize practices internationally to improve efficiency, quality, and compliance across global operations.

What does "standardized" refer to?

"Standardized" refers to the process of making something conform to a standard, ensuring uniformity and consistency, primarily in American English.

In which fields is standardization important?

Standardization is crucial in education, healthcare, industry, and technology for consistency and efficiency.

Are there criticisms of standardized testing?

Yes, standardized testing is criticized for potentially stifling creativity and not accounting for individual learning differences.

Why is standardization important in technology?

In technology, standardization ensures devices and software can operate together seamlessly, enhancing user experience and compatibility.

What role do international standards organizations play?

International standards organizations develop and promote worldwide standards to facilitate trade, ensure safety, and promote innovation.

What are the benefits of standardized testing in education?

Standardized testing can provide objective metrics for assessing student performance and educational outcomes.

How do standardised protocols improve healthcare?

Standardised protocols ensure uniformity in patient care, improving safety and outcomes across the healthcare system.

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Author Spotlight

Written by
Fiza Rafique
Fiza Rafique is a skilled content writer at, where she meticulously refines and enhances written pieces. Drawing from her vast editorial expertise, Fiza ensures clarity, accuracy, and precision in every article. Passionate about language, she continually seeks to elevate the quality of content for readers worldwide.
Co-written by
Maham Liaqat

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