The Implicit Relational Assessment Procedure
is not fit for purpose.

I recommend you do not use it.

After using the Implicit Relational Assessment Procedure (IRAP) in many publications in my PhD and first postdoc, I began to scrutinize many of the basic claims made about the task. I believe the evidence suggests that the IRAP is not fit for purpose, either as a measure of relational responding or of implicit attitudes. Due to both properties of the task and the research practices in the community, much of the published IRAP literature very likely non-replicable and non-credible. Below are some of the key publications highlighting these concerns. I recommend to people that they should not use the IRAP in their research, and instead pursue other lines of research.

Key Publications