Study: self-criticism, compassion & stammering

Posted 26th July 2021

A student at the University of Hull invites adults who stammer to take part in his research into self-criticism, self-compassion and stammering. 

Background & Purpose

Jack Garfield from the University of Hull says, "I have stammered from the age of seven and have deep-rooted self-critical thoughts and low levels of self-compassion. This is common in people who stammer, yet there isn't much research into it.

'I want to find out more about stammering and why I felt distressed growing up. Through an anonymous online survey, I want to measure the effects of high self-criticism and low self-compassion on levels of distress associated with stammering (anxiety and depression). Ultimately I want to see if treatment options for stammering could work in more compassionate ways."

How will it benefit people who stammer?

Jack adds, "I had a negative experience of speech therapy when I was younger — I felt invalidated. I have therefore been able to use my personal experience to find a gap in research; a gap that, if filled, could result in more effective and validating stammering treatment.  

'I hope that my study will inform future service provision for stammering treatment so that people get more effective support for their stammer and thus, in turn, feel more confident and less critical of themselves and their speaking identity."

What does it involve?

Jack has designed an anonymous survey which should take roughly 30 minutes. You can access the survey at:

You can save it at anytime, so you can complete the survey over a number of sessions if you want.

Who can take part?

Jack is looking for people aged 18 and above, who have a 'developmental' stammer. This means you have stammered from a young age rather than your stammer starting later in life through a head injury, for example (known as 'acquired' stammering).


For more information on the study, email Jack at

This study will run until January 2022.

To see more opportunities to take part in research, see our Studies Looking for Participants page.

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