# Comparing delayed matching to sample with three variations of the training‐IRAP for establishing derived relations

**Authors:** Marcello Henrique Silvestre, Colin Harte, Denise Aparecida Passarelli, Júlio César de Rose

PMC · DOI: 10.1002/jeab.70082 · Journal of the Experimental Analysis of Behavior · 2026-01-08

## TL;DR

This study compares different training methods for learning abstract relationships and finds that modified versions of one method perform better than others.

## Contribution

The study introduces modified versions of the training-IRAP and compares their effectiveness with delayed MTS(2s) in establishing derived relations.

## Key findings

- Modified training-IRAP versions produced higher participant yield compared to other methods.
- Delayed MTS(2s) and delayed modified training-IRAP(2s) required fewer training blocks to complete.
- All participants maintained baseline performance during tests across all conditions.

## Abstract

A common method for studying derived relations is the matching‐to‐sample (MTS) preparation. However, certain aspects of its training format potentially hinder the emergence of new relations. The training version of the implicit relational assessment procedure (training‐IRAP) may present an alternative. Our primary objective involved comparing the effectiveness of delayed MTS(2s) and training‐IRAP procedures on participant yield. The secondary objective involved comparing mean number of training blocks per procedure. Given additional components in the standard training‐IRAP not found in MTS, changes were made to the former, producing the modified training‐IRAP and delayed modified training‐IRAP(2s). Sixty‐eight typically developing students participated in a between‐subjects design. Two classes comprising five abstract stimuli were employed. Yield was analyzed at three levels, 91.67, 83.33, and 79% correct responses, with at least 87.5% correct responses at baseline mixed‐block maintenance. All participants maintained baseline criterion during tests. At the three levels of analyses, the modified versions of training‐IRAP produced higher yield, followed by DMTS(2s) and then the standard training‐IRAP. Mean number of blocks to complete training phases was lowest for the delayed MTS(2s) and delayed modified training‐IRAP(2s) groups. Limitations and implications of the findings toward greater precision, scope, and depth in conceptual, experimental, and applied settings are discussed.

## Full-text entities

- **Species:** Homo sapiens (human, species) [taxon 9606]

## Full text

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## Figures

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## References

82 references — full list in the complete paper: https://tomesphere.com/paper/PMC12781045/full.md

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Source: https://tomesphere.com/paper/PMC12781045