The Lexical Resource Criterion is one of the four official scoring criteria used in the Writing and Speaking sections of the IELTS exam.
It measures your range, accuracy, and appropriateness of vocabulary.
In simple terms, it evaluates how well you use words to express ideas clearly, naturally, and precisely.
Where It Applies
This criterion is used in:
Writing
- IELTS Academic Writing
- IELTS General Training Writing
Speaking
- IELTS Academic Speaking
- IELTS General Training Speaking
The Four Main Criteria
Writing Criteria
- Task Achievement / Task Response
- Coherence and Cohesion
- Lexical Resource
- Grammatical Range and Accuracy
Speaking Criteria
- Fluency and Coherence
- Lexical Resource
- Grammatical Range and Accuracy
- Pronunciation
What Examiners Look For
They assess whether you can:
- Use a wide range of vocabulary
- Choose accurate words for meaning
- Use less common vocabulary appropriately
- Paraphrase effectively
- Avoid repetition
- Use collocations naturally
- Control spelling (Writing)
- Express ideas flexibly (Speaking)
What Counts as Strong Lexical Resource
Good Range
Using different vocabulary instead of repeating basic words.
Precision
Choosing exact words.
Example:
- bad → harmful / inefficient / damaging
- good → beneficial / effective / valuable
Natural Usage
Correct combinations such as:
- make progress
- heavy traffic
- rising demand
- tackle pollution
Example: Weak vs Strong
Weak
Technology is good. It gives good things to people and makes life good.
Strong
Technology offers significant benefits by improving efficiency, expanding access to information, and enhancing daily convenience.
Common Problems Candidates Face
Repetition
Using the same word many times.
Memorized Fancy Words
Advanced vocabulary used incorrectly.
Wrong Word Choice
Using a similar but inaccurate word.
Spelling Errors
Important in Writing.
Forced Synonyms
Changing words unnaturally.
High-Scoring Strategies
Build Topic Vocabulary
Common IELTS themes:
- education
- environment
- health
- crime
- technology
- transport
Learn Collocations
Examples:
- reduce crime
- raise awareness
- meet demand
- economic growth
Practice Paraphrasing
Change wording while keeping meaning.
Use Precise Words
Prefer exact vocabulary over vague words.
Review Errors
Track repeated vocabulary mistakes.
Useful Examples
Education
- curriculum
- academic performance
- equal access
Environment
- carbon emissions
- renewable energy
- waste management
Economy
- job creation
- living costs
- financial pressure
Band Score Impact
Higher Bands Usually Show:
- Wide range of vocabulary
- Natural collocations
- Accurate less common words
- Strong paraphrasing ability
Lower Bands Usually Show:
- Limited vocabulary
- Frequent repetition
- Word form mistakes
- Incorrect usage
Writing vs Speaking
Writing
Needs formal, accurate vocabulary.
Speaking
Needs natural, flexible vocabulary in real time.
Quick Tips
- Accuracy beats difficult vocabulary.
- Do not force rare words.
- Learn phrases, not isolated words.
- Repetition can lower impression.
Why Strong Candidates Perform Well
Top scorers use vocabulary naturally, vary their language, and choose words that fit the exact meaning they want.
