IELTS has rigorous test design, development and validation processes. These processes ensure that every version of the test is of a comparable level of difficulty, and that every test around the world provides valid and consistent results.
Test writers from different English-speaking countries develop IELTS content so it reflects real-life situations around the world and is unbiased and fair to all test takers, whatever their background.
Papers are constructed for all four test components according to established principles. Among the factors taken into account are:
Guidance to help you set appropriate IELTS score requirements for your organisation.
The IELTS partners lead an extensive programme of international research designed to ensure the quality and continual improvement of IELTS tests.
Our IELTS guides provide an overview of test development, assessment and score processing for educational institutions, professional bodies and employers.