AET vs CET vs Assessor vs IQA (UK): Which Qualification Is Right for You?

If you’re comparing AET vs CET vs Assessor vs IQA qualifications, you’re likely exploring a career in teaching, training, or assessment.

But what’s the difference, and which one should you choose?

This guide gives you a clear, practical breakdown so you can decide quickly and confidently.

Quick Answer: Which Qualification Do You Need?

If you want a simple answer:

  • AET (Level 3 Award in Education and Training)
    → Best if you’re new to teaching or training
  • CET (Level 4 Certificate in Education and Training)
    → Best if you already deliver training and want to progress
  • Assessor Qualification (CAVA Level 3)
    → Best if you assess learners in the workplace or training environment
  • IQA Qualification (Level 4 Internal Quality Assurance)
    → Best if you want to monitor assessment quality and support assessors

👉 Not sure which fits your situation?
Book a free 15-minute clarity call and get personalised guidance.

AET vs CET vs Assessor vs IQA – Comparison Table

Your GoalRecommended QualificationStudy LevelIdeal For
Start teaching adultsAETLevel 3Beginners/new trainers
Advance in teachingCETLevel 4Practising trainers
Assess learnersAssessor (CAVA)Level 3Workplace assessors
Quality assure assessorsIQALevel 4Experienced assessors/IQAs

Not sure which to choose? That’s where we can help. Our tutors will discuss your goals, previous experience, and learning preferences before recommending the best route.

AET vs CET vs Assessor vs IQA: What’s the Difference?

The main difference between AET, CET, Assessor and IQA qualifications is the role each one prepares you for within education and training.

Each qualification supports a different stage of your career, from delivering training to assessing and quality assuring learning.

Learner Success
Starting with the AET gave me clarity and confidence. I’m now completing my Assessor qualification with KBC.
KBC Learner, 2024

AET (Level 3 Award in Education and Training) – For Aspiring Trainers and New Tutors

The Level 3 Award in Education and Training (AET) is the most common starting point for anyone looking to move into teaching or training adults in the UK.

Ideal if you:

  • Are new to teaching or training adults
  • Deliver workshops, inductions, or short courses
  • Want to move into a training role within your organisation

You’ll learn:

  • How to plan, deliver, and evaluate learning sessions
  • How to use inclusive teaching methods
  • How to assess learners fairly and effectively

Typical roles:

Trainer, Tutor, Instructor, Facilitator

CET (Level 4 Certificate in Education and Training) – For Experienced Trainers and Teachers

The Level 4 Certificate in Education and Training (CET) is designed for individuals who are already delivering training and want to develop their skills, knowledge, and confidence further.

Ideal if you:

  • Are already teaching or delivering training
  • Want to progress into a more advanced teaching role
  • Need a recognised teaching qualification in the UK

You’ll learn:

  • How to plan and deliver more advanced learning sessions
  • How to apply teaching theories to your practice
  • How to assess learners and support their development

You’ll need:

Access to teaching practice (minimum 30 hours, which can include workplace training)

Typical roles:

Teacher, Trainer, Tutor, Learning and Development Practitioner

Assessor Qualification (CAVA Level 3) – For Workplace Assessors

The Level 3 Certificate in Assessing Vocational Achievement (CAVA) is the qualification you need if you assess learners in a workplace or training environment.

Ideal if you:

  • Assess learners in the workplace or training setting
  • Work in apprenticeships or work-based learning
  • Want to become a qualified assessor

You’ll learn:

  • How to plan and carry out assessments
  • How to make sound assessment decisions
  • How to provide constructive feedback to support learner progress

You’ll need:

Access to learners or candidates to assess

Typical roles:

Assessor, Skills Coach, Work-Based Learning Practitioner

IQA Qualification (Level 4 Internal Quality Assurance) – For Quality Assurance Roles

The Level 4 Internal Quality Assurance (IQA) qualification is for experienced assessors who want to move into quality assurance or leadership roles.

Ideal if you:

  • Want to monitor the quality of assessment
  • Support and develop assessors
  • Progress into a quality assurance or management role

You’ll learn:

  • How to monitor the consistency and quality of assessment
  • How to support and standardise assessor practice
  • How to meet awarding body requirements

You’ll need:

Experience as an assessor (or working towards it)

Typical roles:

IQA, Lead IQA, Quality Assurance Officer, Training Manager

Why Choose Karen Blake Coaching?

All our qualifications are:

  • Accredited by iCQ – recognised across the UK and internationally.

  • Delivered online – with flexible start dates and tutor support.
  • Practical and career-focused – designed to help you achieve your professional goals.

Download our free Qualification Comparison Guide to see all four routes side by side and decide which one suits your goals.

Or, if you’re ready to start, you can:

Choosing the right qualification isn’t just about ticking a box, it’s about unlocking your potential, progressing your career, and building the confidence to help others learn.

Whether you’re starting your teaching journey or ready to move into assessment or quality assurance, Karen Blake Coaching provides expert support every step of the way.