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ERP Exposure Ladder

Build a 10-rung hierarchy for exposure & response prevention

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Exposure & Response Prevention. List the feared situations. Rate each one for distress (SUDS, 0–100). Start in the 30–50 range and climb at your pace. The goal is not zero anxiety — the goal is to do the thing while anxious, without the compulsion.

The fear theme

Contamination, harm, ‘not just right,’ moral, sexual, relationship, religious, health.

The compulsion I'll resist

#
Exposure
SUDS
Done
10
9
8
7
6
5
4
3
2
1

10 = hardest at the top, 1 = easiest at the bottom. Climb in order.

After an exposure

SUDS at start
none
1
2
3
4
5
6
7
8
9
10
most
SUDS at peak
none
1
2
3
4
5
6
7
8
9
10
most
SUDS at end
none
1
2
3
4
5
6
7
8
9
10
most

What I learned

References & further reading

Conceptual background and further reading, not validation of this handout. Named instruments and methods belong to their original authors; custom prompts and trackers are not validated versions of those instruments.

  • Abramowitz, J. S. (2018). Getting Over OCD (2nd ed.). Guilford Press.
© 2026 TherapistAssist · For clinical use · Not a substitute for assessment
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About this worksheet

An exposure and response prevention (ERP) hierarchy is the ranked list of exposures a client will work through, ordered by Subjective Units of Distress (SUDS). It's the spine of OCD treatment. The hierarchy serves two purposes: it gives the client a roadmap that makes treatment feel finite, and it ensures exposures are graded — challenging but doable. This worksheet provides a ten-rung ladder with SUDS columns (predicted and actual), the specific exposure, and the response to be prevented. A good hierarchy is concrete (no 'touch germs' — instead 'shake hands with a stranger and don't wash for an hour'), spans the SUDS range (a 30, a 50, a 70, a 90 — not all 80s), and is built collaboratively. ERP is a specialist intervention; therapists not trained in it should refer rather than improvise. The worksheet is for clinicians already practicing it.

When to use it

  • All OCD subtypes — contamination, harm, taboo, symmetry, scrupulosity.
  • Specific phobias and some health anxiety presentations.
  • Always after psychoeducation on the OCD cycle and informed consent for ERP.
  • Requires ERP training. If you're not trained, refer to an IOCDF-listed clinician.

How to use it

  1. 1
    Brainstorm 15-20 exposures

    Wide net first, including things the client thinks they could never do. You'll cut later.

  2. 2
    Rate each one in SUDS

    0–100 predicted distress. Aim for a spread across the range, not bunched at the top.

  3. 3
    Pick 8-10 for the ladder

    Order from lowest SUDS to highest. Skip steps that are duplicative; keep ones that test different obsessions.

  4. 4
    Define the response prevention

    For each exposure, name exactly which compulsions are off-limits (including mental ones). The exposure without RP is just exposure.

  5. 5
    Start near the bottom, repeat until SUDS drops

    Don't move up until predicted distress and actual post-exposure distress are both meaningfully lower. Habituation is the mechanism.

Frequently asked questions

What is an ERP hierarchy?+

A ranked list of exposures for OCD treatment, ordered by SUDS (Subjective Units of Distress, 0-100). Each rung specifies the exposure and the compulsions to be prevented. It's the structural backbone of exposure and response prevention.

How many steps should an ERP hierarchy have?+

Typically 8-10 rungs, spanning the SUDS range. Too few and there are big jumps that scare the client off; too many and progress feels stalled. Aim for steps about 10 SUDS apart.

Do I need ERP training to use this worksheet?+

Yes. ERP is a specialist intervention. Improvised exposure can worsen OCD by reinforcing avoidance or doing exposures without proper response prevention. Refer to an IOCDF-listed therapist if not trained.

What's the difference between ERP and inhibitory learning?+

Classical ERP uses habituation as the mechanism (anxiety drops within an exposure). Inhibitory learning (Craske) targets new learning ('this can happen and I can handle it') and de-emphasizes SUDS drops. Both work; most modern ERP blends them.

Worksheet — ERP Exposure Ladder — provided by TherapistAssist for clinical use. Not a substitute for assessment or treatment.