I'm doing a PhD in the social sciences and want to use an observational method to analyse audio recordings of social work conversations. I will be using an established behavioural coding manual (the Motivational Interviewing Skills Code 2.5) to assign behavioural codes to the interaction. The problem I have is that I need a way of demonstrating that my coding is reliable. Typically, on studies I have worked on in the past, there would be a small sample of recordings that would be re-coded by at least one other person to establish inter-rater reliability. As a sole researcher, I cannot do this.
Is there a way around this issue?