"When our daughter's school mentioned 'the HAST,' I had no idea what it was. Once I understood it tests reasoning ability rather than what she'd memorised, our whole approach to preparation changed. It's not about cramming — it's about thinking skills." — Jennifer K., Parent, Sydney
📋 Official Source
Information in this guide is drawn from the Australian Council for Educational Research (ACER), the organisation that develops and administers the HAST. ACER has over 50 years of experience in educational assessment.
What Is the HAST? A Complete Guide for Parents
The Higher Ability Selection Test (HAST) is a standardised assessment used by over 60 schools across Australia to identify academically gifted students for selective entry programs, scholarships, and extension classes. Developed by the Australian Council for Educational Research (ACER) — one of the world's leading independent educational research organisations — the HAST is specifically designed to measure reasoning ability and academic aptitude, not memorised content.
If your child is applying for a scholarship, selective stream, or gifted program at a private or independent school, there's a good chance the HAST is part of the selection process. Understanding what the test measures and how it works is the first step toward effective preparation.
In this guide, you'll discover:
- What the HAST actually tests — skills and aptitude, not curriculum knowledge
- The two HAST levels — HAST-P (Primary) and HAST Secondary explained
- All four test components — Reading, Mathematical Reasoning, Abstract Reasoning, and Writing
- 60+ participating schools — across NSW, VIC, QLD, and SA
- How HAST differs from other tests — especially the NSW Selective School test
- Preparation strategies that work — building reasoning skills, not rote learning
- Test day essentials — what to bring, expect, and how results are reported
Everything parents need to know about the Higher Ability Selection Test
Click any section above to jump directly to that content
What Is the HAST?
The Higher Ability Selection Test is an aptitude-based assessment that measures a student's ability to reason, analyse, and think critically. Unlike curriculum-based exams that test what a student has learned in class, the HAST evaluates how well they can apply thinking skills to unfamiliar problems.
The Key Distinction: Skills vs Knowledge
This is the most important concept for parents to understand. The HAST deliberately tests skills and aptitude, not retrieved knowledge. ACER explains it this way:
"Aptitude testing is designed to measure ability and academic potential, unlike curriculum-based tests that typically identify what a student has already learned."
What does this mean in practice?
- Your child won't be asked to recall facts, dates, or formulas
- Questions are designed so students from any school can answer them fairly
- Success depends on reasoning ability, not access to specific teaching
This approach levels the playing field. A student from a small rural school has the same opportunity as one from a well-resourced metropolitan school — what matters is how they think, not what they've been taught.
HAST Is Paper-Based
All HAST assessments are paper-based only. There is no computer-based option. This is an important detail for preparation — your child should practise answering questions on paper, including managing time with a physical answer sheet.
Who Develops the HAST?
The HAST is developed and administered by the Australian Council for Educational Research (ACER), an independent, not-for-profit research organisation headquartered in Melbourne.
ACER's Credentials
- Over 50 years of experience in educational assessment
- Develops tests used by schools, universities, and governments worldwide
- Created the HAST specifically to identify high-ability students
- Also develops other well-known assessments including components used in selective entry and scholarship testing
ACER's expertise in psychometric design means the HAST is carefully calibrated to:
- Distinguish between high-ability students (avoiding "ceiling effects" where many students get perfect scores)
- Provide reliable, defensible results for school selection decisions
- Measure genuine aptitude rather than coached responses
When schools use the HAST, they're accessing decades of assessment expertise designed specifically to identify academically gifted students.
HAST-P vs HAST Secondary: Which Level?
ACER offers the HAST at two distinct levels to serve students across different age groups:
HAST Levels Explained
Choose the level that matches your child's entry year
| Feature | Option 1 | Option 2 | Verdict |
|---|---|---|---|
| Target Entry Years | Years 5-6 | Years 7-11 (Junior, Middle, Senior) | Check with your target school |
| Typical Age | 9-11 years | 12-16 years | Based on year of school entry |
| Mathematical Component | Mathematical Reasoning | Mathematical & Scientific Reasoning | Secondary includes science |
| Test Format | Paper-based | Paper-based | Both levels are paper-only |
HAST-P (Primary Level)
Designed for students seeking entry into Years 5 and 6, the HAST-P assesses reasoning ability at a level appropriate for upper primary students. All four components (Reading, Maths, Abstract Reasoning, Writing) are included, with content and timing calibrated for this age group.
HAST Secondary
For students seeking entry into Years 7 through 11, the HAST Secondary is available in three sub-levels:
- Junior — typically for Year 7 entry
- Middle — typically for Years 8-9 entry
- Senior — typically for Years 10-11 entry
One notable difference at Secondary level is that the Mathematical component becomes "Mathematical & Scientific Reasoning," incorporating scientific thinking alongside mathematical problem-solving.
Check Your School's Requirements
Different schools use different HAST levels and may have specific requirements. Always confirm with your target school which level of the HAST they require and when testing is scheduled.
The Four Test Components
All HAST levels assess the same four core reasoning areas. Here's what each component measures:
HAST Test Components
Four areas of reasoning ability
Comprehension
Inference, analysis, vocabulary in context
Reasoning
Problem-solving and quantitative thinking
Reasoning
Non-verbal pattern recognition and logic
Expression
Extended written response under time pressure
Reading Comprehension
Tests your child's ability to:
- Understand explicit and implicit meaning in texts
- Identify main ideas, themes, and author's purpose
- Use context clues to determine word meanings
- Make inferences and draw conclusions
The passages are typically unfamiliar and challenging, testing genuine comprehension rather than prior knowledge of specific texts.
Mathematical Reasoning (or Mathematical & Scientific Reasoning)
Assesses problem-solving ability through:
- Word problems requiring multi-step reasoning
- Pattern recognition in number sequences
- Logical analysis of quantitative information
- At Secondary level: incorporation of scientific reasoning
This is not a test of computational speed or formula recall — it's about how your child approaches and solves unfamiliar problems.
Abstract Reasoning
Measures non-verbal reasoning ability through:
- Pattern recognition in shapes and sequences
- Spatial reasoning and mental rotation
- Identifying rules governing visual patterns
- Applying logic without relying on language
This component is particularly useful for identifying high ability in students who may not excel in traditional reading-based tests, including those from non-English-speaking backgrounds.
Written Expression
Evaluates your child's ability to:
- Construct a coherent, well-organised response
- Express ideas clearly and precisely
- Use appropriate vocabulary and sentence structure
- Complete a substantial piece of writing under time pressure
The Writing component is marked by qualified human assessors, not machines, allowing for nuanced evaluation of expression and argumentation.
Participating Schools
The HAST is used by over 60 schools across four Australian states: New South Wales, Victoria, Queensland, and South Australia. These include prestigious private schools, independent schools, and some government selective programs.
Schools Using HAST Include
New South Wales:
- Sydney Grammar School
- MLC School
- Knox Grammar School
- Barker College
- SCEGGS Darlinghurst
- Newington College
- And many more...
Victoria:
- Various independent schools for scholarship selection
- Some use HAST alongside Edutest or other assessments
Queensland:
- Brisbane State High School (selective stream uses HAST)
- Various private schools for scholarship entry
South Australia:
- Independent schools for gifted program entry
School-Specific Testing
Unlike state-based selective tests where everyone sits the same exam on the same date, HAST testing is organised individually by each school. This means:
- Different schools test on different dates
- Registration is with each school directly
- Your child may sit the HAST multiple times for different school applications
For the complete list of participating schools and their specific requirements, visit our HAST Exam Preparation page or check the ACER website.
How HAST Differs from Other Selective Tests
If you're familiar with other selective school tests in Australia, understanding how the HAST differs can help you prepare effectively.
HAST vs Other Selective Tests
Key differences to understand
| Feature | Option 1 | Option 2 | Verdict |
|---|---|---|---|
| Test Format | Paper-based only | NSW Selective: Computer-based | HAST uses traditional paper format |
| Who Administers | Individual schools (ACER provides tests) | NSW: Centralised by DoE | HAST is school-controlled |
| Test Dates | Vary by school | NSW: Single test date state-wide | Check each school's schedule |
| Focus | Aptitude and reasoning ability | Mix of aptitude and achievement | HAST emphasises thinking skills |
| Schools Using | 60+ private/independent schools | NSW: Government selective schools | Different school systems |
Key Differences from NSW Selective Test
-
Paper vs Computer: The NSW Selective School test moved to a fully computer-based format, while the HAST remains paper-based.
-
Centralised vs Distributed: NSW runs one test on one day for all applicants; HAST is administered by individual schools on dates they choose.
-
School Type: The NSW test is for government selective schools; HAST is predominantly used by private and independent schools.
-
Multiple Attempts: Because HAST dates vary by school, your child might sit the HAST multiple times when applying to different schools — each school gets independent results.
For students applying to both government selective schools (via the NSW Selective Test) and private schools (via HAST), preparation overlaps significantly in terms of skill development, but practice should account for the different formats.
For a detailed comparison, see our guide on HAST vs Selective Test Differences.
Preparation Strategies That Work
Because the HAST tests reasoning ability rather than curriculum content, effective preparation looks different from studying for a typical school exam.
What Doesn't Work
- ❌ Memorising facts, dates, or formulas
- ❌ Last-minute cramming
- ❌ Focusing only on content your child already knows
- ❌ Excessive drilling without understanding
What Does Work
- Building genuine reasoning skills over time
- Regular practice with unfamiliar problem types
- Developing reading comprehension across varied texts
- Working on time management under test conditions
- Practising the paper-based format specifically
Component-by-Component Approach
Reading Comprehension:
- Read widely across different genres and difficulty levels
- Practise inference questions — what does the author imply?
- Build vocabulary through context, not memorisation
- Time yourself to build speed without sacrificing accuracy
Mathematical Reasoning:
- Focus on problem-solving strategies, not just calculations
- Practise word problems requiring multi-step thinking
- Learn to identify patterns quickly
- Build mental maths fluency for efficiency
Abstract Reasoning:
- This is often the most unfamiliar component for students
- Practise with pattern recognition puzzles
- Work on spatial reasoning exercises
- Develop systematic approaches to identifying rules
Written Expression:
- Practise writing complete responses under time limits
- Focus on clear structure and logical development
- Build vocabulary for precise expression
- Learn to plan quickly before writing
Give Your Child the Advantage
HAST Preparation Courses
View All Courses
- ✓400+ Comprehensive ACER-ASET/GATE Exam-Style Tests
- ✓10 Reading Comprehension Exercises
- ✓10 Quantitative Reasoning Practice
- ✓5 Abstract Reasoning Tests
- ✓100 Non-Verbal Reasoning Practice Tests
- ✓20 Writing Tasks with detailed solutions & feedback
- ✓Foundation + Advanced Vocabulary Courses
- ✓50 Poetry Practice Tests
- ✓150+ Daily Paragraph Editing Exercises
- ✓180/365 Days of Unlimited Access
- ✓Detailed explanations for every question
- ✓Full preparation in one pack
- ✓Email Support
- ✓400+ Comprehensive ACER-HAST Exam-Style Tests
- ✓10 Reading Comprehension Exercises
- ✓10 Mathematical Reasoning Practice
- ✓5 Abstract Reasoning Tests
- ✓100 Non-Verbal Reasoning Practice Tests
- ✓20 Writing Tasks with detailed solutions & feedback
- ✓100+ Vocabulary Tests + 200-word Vocabulary Mastery Course with sentence usage & quizzes
- ✓50 Poetry Practice Tests
- ✓150+ Daily Paragraph Editing Exercises
- ✓180/365 Days of Unlimited Access
- ✓Detailed explanations for every question
- ✓Full preparation in one pack
- ✓Includes 50 practice tests with detailed
- ✓step-by-step solutions
- ✓Master poetic devices
- ✓literary techniques
- ✓and figurative language
- ✓Analyse unseen poems with confidence and precision
- ✓Tackle a wide range of question types from major exams
- ✓Develop critical thinking and analytical skills for top marks
- ✓Perfect for OC
- ✓Selective
- ✓HAST
- ✓and Scholarship exam preparation
- ✓Build a strong foundation for advanced English studies
- ✓90 days of unlimited access to all resources
- ✓50+ Poetry comprehension lessons
- ✓Practice with real exam poems
- ✓Detailed explanations
- ✓Self-paced
- ✓Email support
- ✓5 full-length Mathematical Reasoning tests
- ✓5 Reading Comprehension tests
- ✓5 Abstract Reasoning tests
- ✓5 Writing Prompts with expert feedback
- ✓Personalized feedback for each writing task
- ✓Based on the latest online HAST (ACER) test format
- ✓Questions mirror the real exam experience
- ✓100+ Vocabulary Tests + 200-word Vocabulary Mastery Course with sentence usage & quizzes
- ✓Detailed explanations for every question
- ✓180 days of unlimited access to all resources
- ✓5 Quantitative Reasoning tests
- ✓5 Reading Comprehension tests
- ✓5 Abstract Reasoning tests
- ✓5 Writing Prompts with expert feedback
- ✓100+ Vocabulary Tests + 200-word Vocabulary Mastery Course with sentence usage & quizzes
- ✓180 days unlimited access
- ✓5 Quantitative Reasoning tests
- ✓5 Reading Comprehension tests
- ✓5 Abstract Reasoning tests
- ✓Based on latest ACER test format
- ✓Detailed explanations and model answers for every question
- ✓90 days unlimited access
- ✓Foundation + Advanced Vocabulary Courses
- ✓50+ targeted, topic-wise vocabulary practice test sets
- ✓1,000+ high-impact, exam-relevant words with contextual sentences and model usage
- ✓Multiple formats: multiple-choice, sentence application, usage tasks
- ✓Detailed answers, explanations, and progress tracking
- ✓Enhances comprehension and precise word use
- ✓Improves persuasive and creative writing expression
- ✓90 days of unlimited access to all resources
- ✓200+ Vocabulary Words
- ✓Sentence Usage & Quizzes
- ✓Self-paced Learning
- ✓Lifetime Access
- ✓Email Support
- ✓5 full-length Mathematical Reasoning tests
- ✓5 Reading Comprehension tests
- ✓5 Abstract Reasoning tests
- ✓Based on the latest online HAST (ACER) test format
- ✓Questions mirror the real exam experience
- ✓Detailed explanations and model answers for every question
- ✓90 days of unlimited access to all resources
- ✓Access 95 solved non-verbal reasoning test papers online
- ✓Expert-designed questions mirroring real exam challenges
- ✓Covers 14 key topics including analogies, matrices, and 3D shapes
- ✓Practice over 1,900 questions with detailed answers
- ✓Boost exam speed, accuracy, and time management skills
- ✓Suitable for all major selective school and scholarship exams in Australia
- ✓Online platform to track progress and review performance
- ✓90 days of unlimited access to all resources
- ✓18 narrative writing prompts across genres like mystery, suspense, and fantasy
- ✓Learn key storytelling techniques to build tension
- ✓Flexible and self-paced, perfect for busy students
- ✓Ideal for creative writing exams and competitions
- ✓Engaging exercises to expand writing abilities
- ✓Expert-led lessons to guide you step-by-step
- ✓Receive personalised feedback, sample responses, and vocabulary usage examples to refine your skills
- ✓Comprehensive curriculum for all skill levels
- ✓180 days of unlimited access to all resources
Recommended Timeline
| Timeframe | Focus |
|---|---|
| 6+ months before | Wide reading, general reasoning skill development |
| 3-6 months before | Targeted component practice, regular timed exercises |
| 1-3 months before | Full practice tests, refine weak areas |
| Final weeks | Test-day simulation, confidence building |
For comprehensive preparation resources, see our HAST Test 2026 Complete Guide.
Test Day and Results
What to Expect on Test Day
Each school administers the HAST according to its own schedule and procedures, but generally:
- Your child will sit the test at the school's campus
- All four components are typically completed in one sitting
- Total test time is approximately 2-3 hours depending on level
- Standard stationery is usually provided (confirm with school)
What to Bring:
- Confirmation of registration/testing
- Photo ID if required
- Pencils and erasers (confirm what's allowed)
- Water bottle
- Positive mindset!
How Results Are Reported
ACER uses a 10-working-day turnaround between receiving completed tests and providing results. Schools receive:
- Individual student reports showing performance across each component
- School reports providing clear ranking of students across testing areas
- Percentile information to contextualise performance
ACER also provides complimentary assistance to schools in interpreting results, with customised analysis available on request.
Results Go to Schools, Not Parents
HAST results are provided directly to the school that administered the test. The school then uses these results as part of their selection process. You typically won't receive a detailed score breakdown — just the outcome of your application.
Frequently Asked Questions
What age is the HAST for?
HAST-P is for entry into Years 5-6 (typically ages 9-11). HAST Secondary is for entry into Years 7-11 (typically ages 12-16). The specific level depends on which year of school your child is seeking entry to.
Is the HAST the same as the NSW Selective test?
No. The HAST is developed by ACER for use by individual schools (mostly private/independent), while the NSW Selective test is administered by the Department of Education for government selective schools. The HAST is paper-based; the NSW Selective test is now computer-based.
Can my child sit the HAST multiple times?
Yes. Because each school administers the HAST on its own schedule, your child may sit the test multiple times when applying to different schools. However, results from one school's test are not shared with other schools.
How is the Writing component marked?
Written Expression is assessed by qualified human markers, not machines. This allows for nuanced evaluation of expression, argumentation, and writing quality that automated scoring cannot provide.
When should we start preparing?
We recommend beginning at least 3-6 months before the test date for meaningful skill development. Because the HAST tests reasoning ability rather than memorised content, preparation is about building skills over time, not cramming.
Do tutoring centres help with HAST preparation?
Structured preparation can help if it focuses on building genuine reasoning skills rather than rote learning. Look for programs that offer practice with all four components, timed test simulation, and feedback on areas needing improvement.
What if my child doesn't perform well?
One test on one day doesn't define your child's potential. If the result isn't what you hoped for, consider:
- Applying to other schools with different testing
- Reapplying in a later year (some schools allow multiple applications)
- Exploring other pathways to academic extension
Is the HAST fair for all students?
ACER designs the HAST to measure reasoning ability regardless of school attended or curriculum studied. This makes it fairer for students from diverse backgrounds compared to curriculum-based tests. The inclusion of Abstract Reasoning (a non-verbal component) also helps identify ability in students who may face language-based disadvantages.
Essential Resources
Your HAST Preparation Toolkit
HAST Test 2026 Complete Guide
Comprehensive preparation guide with strategies for all four components
HAST Exam Preparation
Structured preparation courses for HAST success
HAST vs Selective Test Comparison
Understand the differences between HAST and other selective tests
HAST Practice Tests & Resources
Free mock tests and practice materials
Official ACER HAST Information
Australian Council for Educational Research (external)
Ready to Start Preparing?
The HAST is a challenging but fair assessment that rewards genuine reasoning ability over rote learning. With the right preparation approach — focusing on skill development over months rather than cramming — your child can perform to their potential.
If you have questions about HAST preparation or want structured support for your child's journey, our team is here to help.
Give Your Child the Advantage
Prepare for HAST Success
View All Courses- ✓400+ Comprehensive ACER-ASET/GATE Exam-Style Tests
- ✓10 Reading Comprehension Exercises
- ✓10 Quantitative Reasoning Practice
- ✓5 Abstract Reasoning Tests
- ✓100 Non-Verbal Reasoning Practice Tests
- ✓20 Writing Tasks with detailed solutions & feedback
- ✓Foundation + Advanced Vocabulary Courses
- ✓50 Poetry Practice Tests
- ✓150+ Daily Paragraph Editing Exercises
- ✓180/365 Days of Unlimited Access
- ✓Detailed explanations for every question
- ✓Full preparation in one pack
- ✓Email Support
- ✓400+ Comprehensive ACER-HAST Exam-Style Tests
- ✓10 Reading Comprehension Exercises
- ✓10 Mathematical Reasoning Practice
- ✓5 Abstract Reasoning Tests
- ✓100 Non-Verbal Reasoning Practice Tests
- ✓20 Writing Tasks with detailed solutions & feedback
- ✓100+ Vocabulary Tests + 200-word Vocabulary Mastery Course with sentence usage & quizzes
- ✓50 Poetry Practice Tests
- ✓150+ Daily Paragraph Editing Exercises
- ✓180/365 Days of Unlimited Access
- ✓Detailed explanations for every question
- ✓Full preparation in one pack
- ✓Includes 50 practice tests with detailed
- ✓step-by-step solutions
- ✓Master poetic devices
- ✓literary techniques
- ✓and figurative language
- ✓Analyse unseen poems with confidence and precision
- ✓Tackle a wide range of question types from major exams
- ✓Develop critical thinking and analytical skills for top marks
- ✓Perfect for OC
- ✓Selective
- ✓HAST
- ✓and Scholarship exam preparation
- ✓Build a strong foundation for advanced English studies
- ✓90 days of unlimited access to all resources
- ✓50+ Poetry comprehension lessons
- ✓Practice with real exam poems
- ✓Detailed explanations
- ✓Self-paced
- ✓Email support
- ✓5 full-length Mathematical Reasoning tests
- ✓5 Reading Comprehension tests
- ✓5 Abstract Reasoning tests
- ✓5 Writing Prompts with expert feedback
- ✓Personalized feedback for each writing task
- ✓Based on the latest online HAST (ACER) test format
- ✓Questions mirror the real exam experience
- ✓100+ Vocabulary Tests + 200-word Vocabulary Mastery Course with sentence usage & quizzes
- ✓Detailed explanations for every question
- ✓180 days of unlimited access to all resources
- ✓5 Quantitative Reasoning tests
- ✓5 Reading Comprehension tests
- ✓5 Abstract Reasoning tests
- ✓5 Writing Prompts with expert feedback
- ✓100+ Vocabulary Tests + 200-word Vocabulary Mastery Course with sentence usage & quizzes
- ✓180 days unlimited access
- ✓5 Quantitative Reasoning tests
- ✓5 Reading Comprehension tests
- ✓5 Abstract Reasoning tests
- ✓Based on latest ACER test format
- ✓Detailed explanations and model answers for every question
- ✓90 days unlimited access
- ✓Foundation + Advanced Vocabulary Courses
- ✓50+ targeted, topic-wise vocabulary practice test sets
- ✓1,000+ high-impact, exam-relevant words with contextual sentences and model usage
- ✓Multiple formats: multiple-choice, sentence application, usage tasks
- ✓Detailed answers, explanations, and progress tracking
- ✓Enhances comprehension and precise word use
- ✓Improves persuasive and creative writing expression
- ✓90 days of unlimited access to all resources
- ✓200+ Vocabulary Words
- ✓Sentence Usage & Quizzes
- ✓Self-paced Learning
- ✓Lifetime Access
- ✓Email Support
- ✓5 full-length Mathematical Reasoning tests
- ✓5 Reading Comprehension tests
- ✓5 Abstract Reasoning tests
- ✓Based on the latest online HAST (ACER) test format
- ✓Questions mirror the real exam experience
- ✓Detailed explanations and model answers for every question
- ✓90 days of unlimited access to all resources
- ✓Access 95 solved non-verbal reasoning test papers online
- ✓Expert-designed questions mirroring real exam challenges
- ✓Covers 14 key topics including analogies, matrices, and 3D shapes
- ✓Practice over 1,900 questions with detailed answers
- ✓Boost exam speed, accuracy, and time management skills
- ✓Suitable for all major selective school and scholarship exams in Australia
- ✓Online platform to track progress and review performance
- ✓90 days of unlimited access to all resources
- ✓18 narrative writing prompts across genres like mystery, suspense, and fantasy
- ✓Learn key storytelling techniques to build tension
- ✓Flexible and self-paced, perfect for busy students
- ✓Ideal for creative writing exams and competitions
- ✓Engaging exercises to expand writing abilities
- ✓Expert-led lessons to guide you step-by-step
- ✓Receive personalised feedback, sample responses, and vocabulary usage examples to refine your skills
- ✓Comprehensive curriculum for all skill levels
- ✓180 days of unlimited access to all resources