Are you looking to interview or assess someone who stammers? Find out how to accommodate them and put them on an equal footing with other candidates.
Introduction
Interviewing procedures, whether they're part of recruitment, HR or university admissions, are often set up without any thought for interviewees who stammer.
Yet, in the UK, the Equality Act and the Disability Discrimination Act (NI) put a legal obligation on organisations to make sure they're not disadvantaging people who stammer through their interview procedures.
At least 1% of UK adults stammer, contributing a wealth of talent to organisations — in all professions and at all levels. So you can find the best person for the job, ensure your interview or assessment process accommodates candidates who stammer. Be prepared to make reasonable adjustments for them where necessary.
Added pressure
Most interviewers, on first impressions, see a stammer and think you're nervous, unprepared, even less capable. They don't always see the ideas, passion and skills you can't always get out fluently, but are there.
People who stammer often think they'll be judged on how they speak. They might think they'll be marked down at job interviews for not having good communication skills. There's a pressure to perform 'well' verbally and to communicate everything through speech.
Stammering during interviews
Due to this added pressure, a candidate's stammer may increase in a recruitment or assessment process. Some may struggle simply to get words out. It's often no reflection of how they will speak in the day-to-day job.
Being judged on how they speak might make some people mask their stammer, if they can. This means it won't be noticeable to you but it may affect what or how much they say. For others, you may hear some stammering but might not realise how much effort that person is using to come across as fluent.
Whether the person stammers openly or not, the strict requirements of standard interview procedures can make someone who stammers:
- give answers which are short or lack depth
- look away while trying to get words out
- pause for some time before answering
- start somewhere different and scramble to try and find words they can say more easily
- give an overly elaborate or convoluted answer.
Such responses can be misconstrued. The candidates may have been trying to physically say a word or swap one for another word they can say.
This behaviour may be misread as evidence that they were unsure of an answer. Or that they avoided answering, were nervous, reluctant, or they meandered because they didn't know what they wanted to say.
What matters is how the person will perform at work, not in the job interview. Focus on the content of what they're saying.

Reasonable adjustments
If you know that a candidate stammers, show that you want to support them in displaying their talents. You can do this by offering to make 'reasonable adjustments' to the interview process. They might ask for these themselves.
Examples of reasonable adjustments include:
- Extra time in interviews.
- More informal interviews.
- Face-to-face interviews rather than phone interviews. People who stammer are likely to stammer more on the phone and the lack of visual interaction can put them at a disadvantage. If face-to-face interviews aren't practical, video calls — with appropriate adjustments — would normally be the next best thing. Ask what the candidate would prefer.
- Written answers rather than an oral interview, with follow-up questions asked face-to-face or by video.
- Ask follow-up questions if spoken answers are short or lack depth.
- Consider the person's oral answers and written information from their application, giving the latter no less weight.
- Allow them to prepare a presentation beforehand and use the interview to ask questions about it (see 'Oral Assessments' below).
- Invite them to provide evidence of their skills from a previous job or set up a work trial.
- Give them the opportunity to write up anything they were unable to say after the interview.
- Provide written questions in advance.
Check out more ideas in our 'Reasonable adjustments for employers' download below.
Adjustments are not just about giving someone extra time. If a person doesn't stammer that much in an interview, you still need to take their stammer into consideration.
Reasonable adjustments can also help you better understand a candidate's skills, meaning you won't miss out on talent.
Read more about reasonable adjustments and their relation to the Equality Act and Disability Discrimination Act on our Stammering & The Law page.
Discussing adjustments
When inviting an applicant to an interview, ask them if they would like any reasonable adjustments.
If an applicant has disclosed their stammer in advance or has asked to make you aware of it, talk to them. Outline the interview format, including any presentations or oral assessments.
Ask them how stammering might affect them and their speech in the process, and what adjustments would help. Discuss adjustments with them early so you have time to put them in place.
Reasonable adjustments are a great tool for making your recruitment processes more inclusive and for finding the best candidate for the job role. You risk legal claims if you don't consult and find out what adjustments would suit the candidate.
Oral assessments
A stammer can make someone's presentation style interesting, memorable and encourage an audience to pay close attention. As we mentioned above, good communication skills and fluency are not the same thing.
Particular oral skills and the ability to cope in some situations, say a class full of children, may be important for the job. If so, assess candidates in mock scenarios. Make sure those scenarios match the job scenario as closely as possible.
- If the job involves presenting to one or two people, don't ask a candidate to present to a large group in the assessment.
- Don't require a client pitch if that's not an important part of the job.
- Don't use a group interview to assess how someone performs in meetings. Simulate a real meeting with typical topics.
- If you're setting up a group scenario where it would be reasonable to have a Chair, ask someone to chair. Ask them to ensure the candidate has a chance to contribute and to discuss this with the candidate beforehand.
Even if scenarios resemble the job, how much a person stammers during recruitment doesn't necessarily reflect what they'll be like in the job (see 'Stammering during interviews' above).
If a presentation is part of the interview but oral presentations are not part of the job, don't assess their oral presentation skills. Focus on the content.
If giving presentations is part of the job, how important is it that they be oral? Can people email a presentation to the meeting participants beforehand, and use the meeting to take questions? If so, allow candidates to do a written presentation followed by oral questions.
Other considerations
If it's a physical interview, think through the whole process from entry-phones to reception staff. You don't want a great candidate being put off by a member of staff thoughtlessly laughing at them, which may itself breach the Equality Act or Disability Discrimination Act.
For many people who stammer, saying their name on demand is hard, so pre-warn reception staff. That way, staff can open with "Hello, are you Sam Jones?" (at the intercom and at reception), rather than waiting for a likely Sam Jones to introduce themselves.
Title
STAMMA support services
Employment Support Service
Through our Employment Support Service, we support organisations with issues related to stammering. Email us at employmentsupport@stamma.org or call our helpline free on 0808 802 0002 and request that someone from the Employment Support Service calls you back.
Training Service
Our Training Service provides consultation, training and resources to help you create stammer-friendly environments and processes for your staff and customers. Email us at training@stamma.org or call our helpline on 0808 802 0002 and request that someone from the Training Service calls you back.
Affiliate with us
For a small annual fee you can affiliate with STAMMA to access a range of services to help make your organisation inclusive for people with speech differences. See Affiliate With STAMMA for more details.
Resources
We've got more information in our 'Inclusive Interviews: Making space for stammering' download below.
Our 'Reasonable adjustments for employers' download below includes a list of ways to accommodate people who stammer in interviews and in the workplace.
If you've just hired someone who stammers, or if one of your team members stammers, see our Guide For Employers page. It's also has tips for making recruitment processes more inclusive.
Videos
Stammering, diversity and inclusion. A webinar on how to incorporate stammering into your organisation's diversity and inclusion agenda. Recorded in 2021.
Working with, teaching and employing people who stammer. A webinar on ways to create an inclusive environment for people who stammer at your workplace, school, university or institution. Recorded in 2020.