About: Implicit Relational Assessment Procedure

The Implicit Relational Assessment Procedure (IRAP) is a computer-based psychological measure. It was heavily influenced by the implicit-association test, and is one of several tasks referred to as indirect measures of implicit attitudes. The IRAP is one of relatively few indirect measures that can includes relational or propositional rather than associative information. The IRAP was conceptualised by Dermot Barnes-Holmes, and originally published in 2006. A meta analysis of clinically-relevant criterion effects suggest that the IRAP has good validity. However, a second meta analysis suggests that it has poor reliability, like many reaction time based measures. Research using the IRAP is often linked to relational frame theory, a functional-analytic theory of language.