The Implicit Relational Assessment Procedures (IRAP)
This software has been used extensively to assess implicit relational responding, or responding that is outside of conscious awareness. This program was developed as an alternative to the Implicit Assessment Test (IAT) which was developed with social psychology as a way to assess implicit biases. While the IAT requires participants to categorize lists of words, the IRAP is designed to assess relational responses using contextual cues of interest. There are numerous studies that have used the IRAP, compared its results to that of (explicit) self-reported beliefs, and some that have compared it directly to the IAT. See the Empirical Support page for a detailed list of studies.