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tested on vs tested in

Both 'tested on' and 'tested in' are correct, but they are used in different contexts. 'Tested on' is used when referring to the subject or object that is being tested. Meanwhile, 'tested in' is used when referring to the environment or conditions of the test.

Explained by Jennifer
Editor at TextRanch

Last updated: June 28, 2024 • 2370 views

tested on

This phrase is correct and commonly used when referring to the subject or object being tested.

Use 'tested on' when referring to the subject or object that is undergoing a test or evaluation.

Examples:

The new drug was tested on a group of volunteers.
The software was tested on various operating systems.
The students were tested on their knowledge of the subject.
The car was tested on different road conditions.
The material was tested on its durability.

Show examples from the web [+]

It was tested on humans and not animals.
The prototypes are tested on a reference charge and modified to achieve the desired performance.
at manufacturer's request engine may be tested on:
The parent engine shall be tested on the relevant reference fuel, as specified in Annex IX, for the relevant range.
Yes, tested on poor, little, fluffy mice.
This method has been tested on mice and pigs and has been proven to promote the burn healing process in a couple of weeks.
The vaccine is the result of 25 years of research and was tested on 15460 babies and young children in seven African countries.
The parent engine shall be tested on the relevant reference fuel, as specified in Annex IV, for the relevant range.
At the manufacturer's request the engine may be tested on the reference fuels G
Propulsion engines that operate on a fixed-pitch propeller curve shall be tested on a dynamometer using the following 4-mode steady-state cycle
Fixed speed inland waterway propulsion engines with variable pitch or electrically coupled propellers shall be tested on a dynamometer using the following 4-mode steady-state cycle
The parent engine shall be tested on the relevant reference fuel, as specified in Annex 5, for the relevant range.
The parent engine must be tested on the relevant reference fuel as specified in annex 6 for the relevant range.
Heidecker said the Shop tested on human subjects.
Heidecker said the Shop tested on human subjects.
It was tested on humans and not animals.
The SODRA treatment has never been tested on humans beings.
But you're not being tested on what happened.
Advisers, investment managers, credit officers and accountants should be tested on them in their qualifying exams.
It's currently being tested on students at the Chelsea University Health Center.

Alternatives:

evaluated on
examined on
assessed on
tried on
experimented on

tested in

This phrase is correct and commonly used when referring to the environment or conditions in which the test takes place.

Use 'tested in' when referring to the environment, conditions, or context in which the test is conducted.

Examples:

The new product was tested in a controlled laboratory setting.
The athletes were tested in extreme weather conditions.
The theory was tested in various experiments.
The equipment was tested in real-world scenarios.
The hypothesis was tested in a series of trials.

Show examples from the web [+]

Gynofit has been developed and tested in cooperation with gynaecologists.
Approved by FIE and tested in CE laboratory.
Projects originating in this joint research should be tested in specific situations.
Should be tested in this respect, whether it is possible to reduce a current position.
The lances can be positioned and tested in different locations.
Perfected and tested in countless missions, this jetis ready to handleevery situation.
The Sunflower solar collector has been tested in ITW lab and obtained SRCC certification.
The feature is tested in Chrome Canary only currently.
Your ad should be tested in Internet Explorer 6 or higher and Firefox.
For quite some time, vehicles were tested in a glass building without ventilation.
The idea is complemented by many designs from the previous description tested in The disappearing city.
The training program was then tested in different countries.
The key ingredients of this enhancer supplement have been tested in laboratory conditions and shown to be effective.
The supernatant was tested in various ways to determine the cause of ascites.
The product is being tested in Indiaand Nepal.
Their reliability must be tested in extreme situations, that is during conflict.
New types of treatment are being tested in clinical trials.
The combination has not been tested in reproductive toxicity studies.
All models produced are tested in our factory.
They have last year tested in Colorado.

Alternatives:

evaluated in
examined in
assessed in
tried in
experimented in

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