The Three Formal CAS Interviews (DP IB Creativity, Activity, Service): Revision Note

Dr Dean West

Written by: Dr Dean West

Reviewed by: Alistair Marjot

Updated on

What happens in the Initial Interview?

Timing and purpose

  • This interview is held at the beginning of the Diploma Programme

  • The session ensures you understand the mandatory requirements and purpose of the CAS programme

Planning your journey

  • Setting goals:

    • You will discuss your personal interests, skills and talents to shape a personalised plan

  • Reviewing learning outcomes:

    • You will discuss the seven specific goals that describe what you are able to do as a result of your journey

  • Explaining the CAS stages:

    • You will discuss the five-step methodology of investigation, preparation, action, reflection and demonstration used to plan experiences

  • Portfolio format:

    • You will discuss the best form for your CAS portfolio

What happens in the Mid-point Interview?

Timing and purpose

  • This interview is normally held towards the end of the first year of the Diploma Programme

  • It acts as a progress check—a formal review to ensure you are consistently documenting your experiences and reflecting on them

    • Your coordinator checks that you are gathering diverse evidence in your portfolio

Maintaining programme balance

  • Checking CAS strands:

    • You will discuss whether you have a reasonable balance between the three strands of the CAS programme

  • CAS project status:

    • You will discuss the planning or progress of your collaborative project

  • Adjusting plans:

    • This interview is an opportunity to change your goals if needed to ensure all outcomes are met

What happens in the Final Interview?

Timing and purpose

  • The summative interview is held just before the Diploma Programme finishes

  • It is a summative reflection—a final discussion regarding your overall journey and personal development

  • Sign-off:

    • This interview ends with your CAS coordinator deciding whether the programme has been successfully completed

Demonstrating success

  • Demonstrate evidence:

    • You will use your portfolio to outline how you have achieved all seven learning outcomes

  • Evaluating growth:

    • You will discuss your achievements, challenges and how the journey may impact your future choices

Analogy: The Checkpoints 

  • Think of the three CAS interviews as mandatory checkpoints on a long-distance hike:

    • The Initial Interview is like meeting your guide at the trailhead to check your map, compass and supplies before you start walking

    • The Mid-point Interview is a rest stop halfway up the mountain, where you check your gear, make sure you aren't ignoring any part of the path and adjust your route if you've drifted off course

    • The Final Interview is reaching the summit, where you open your logbook to prove you visited every required peak and reflect on how the climb has made you a stronger hiker

Flowchart on paper outlines process: "Start" to "DP1", "Set up CAS profile", "Interview 1", "CAS Project", "Interview 2", "DP2", "Interview 3", "Completion". Arrows show flow, reflection loop.
A simple DP1–DP2 timeline showing: early DP1 profile + interview 1 → late DP1 interview 2 → DP2 interview 3 (summative). CAS project ideally underway by mid DP1.

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Dr Dean West

Author: Dr Dean West

Expertise: Content Writer

Dr Dean West is a UK-based educator, Principal Examiner and assessment specialist. He leads IB CAS and the Extended Essay at Bromsgrove School, where he also coordinates and teaches IB Business Management. A Chartered Teacher and Chartered Educational Assessor, he has examined for WJEC, Cambridge International and Edexcel, consulted for Ofqual and the British Council. He holds a PhD in Education from the University of Warwick.

Alistair Marjot

Reviewer: Alistair Marjot

Expertise: Environmental Systems and Societies & Biology Content Creator

Alistair graduated from Oxford University with a degree in Biological Sciences. He has taught GCSE/IGCSE Biology, as well as Biology and Environmental Systems & Societies for the International Baccalaureate Diploma Programme. While teaching in Oxford, Alistair completed his MA Education as Head of Department for Environmental Systems & Societies. Alistair has continued to pursue his interests in ecology and environmental science, recently gaining an MSc in Wildlife Biology & Conservation with Edinburgh Napier University.