I realise that few person-centred therapists are into conversation analysis, but I think that this sort of analysis really captures to how good person-centred therapy and counselling actualy works. I would like all my students on our Person-Centred Postgrad Diploma Counselling at Strathclyde to know this stuff, and I wish I could develop some sort of research input for the course on this. It's also very relevant to EFT practice, which is based on person-centred empathic work as its baseline.
As a side-note, one of our MSc students, Catherine Cowie, recently completed her dissertation on the same topic, so it will be useful for us to compare her results to those of Muntigl et al. In the meantime, I'll just give the reference here and add my endorsement to this line of research: