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Feel the Func: Interpreting IRAP Performances Based on Cfunc versus Crel Stimulus Properties

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Abstract

Two experiments tested a basic assumption of the differential arbitrarily applicable relational responding effects (DAARRE) model by examining the extent to which functional (Cfunc) and relational (Crel) properties of stimuli affect performances on the implicit relational assessment procedure (IRAP). Experiment 1 required participants to complete IRAPs in both their native and a foreign language. Twenty-one Brazilian participants (fluent in both Portuguese and English) completed two IRAPs, one in which Portuguese-language stimuli were predominantly used and a second in which English-language stimuli were predominantly used. The IRAP trial-type containing Portuguese-language (1) labels, (2) positively valenced targets, and (3) response options produced the largest IRAP effect across all eight trial-types (four within each IRAP). Consistent with the DAARRE model, the Cfunc properties of the native language stimuli appeared to dominate over the Crel properties, relative to the foreign language stimuli. Experiment 2 sought to extend Experiment 1 using a known-groups design involving stimuli that were assumed to possess differential Cfunc properties across two groups of Brazilian soccer fans. Two groups of participants were recruited, differing in their support for specific Brazilian soccer teams. They completed a single IRAP task that included the names of the teams and their corresponding team badges. It is critical to note that responding to the IRAP trial-types did not require any explicit evaluative response in that the IRAP required participants to simply categorize team badges with team names as “true” or “false.” The largest IRAP effect observed for each group was for the trial-type that presented the name and badge for that group’s supported team. Both experiments provide support for the DAARRE model analysis by indicating that the Cfunc properties of stimuli are critically important when interpreting IRAP performances. A number of caveats to this conclusion are discussed.

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Data Availability

The datasets involved in the current study are available from the corresponding authors upon reasonable request.

Notes

  1. “How? It was a completely indifferent sentence, what I said there. Me, you notice it well, I hardly speak French. However, with you I prefer this language to mine, because for me, to speak French is to speak without speaking, in some way: without responsibility, or as we speak in dreams. You understand?”

  2. This participant selection criterion was based on the study by Haydu et al. (2015), which investigated the establishment of equivalent relations by “passionate” soccer supporters.

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Funding

This research was supported by the National Institute of Science and Technology on Behavior, Cognition, and Teaching (INCT-ECCE). The INCT-ECCE is financially supported by the Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP, Grant # 2014/50909-8), the Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES, Grant #88887.136407/2017-00), and the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq, Grant # 465686/2014-1). Preparation of this manuscript was supported by a productivity research grant to the first author by the CNPq (Grant # 309041/2021-0) and by a fellowship awarded to the third author by FAPESP (Grant #2019/24210-0).

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Contributions

RB conceived the research, supervised data collection, and contributed to writing the article. MS assisted in conceiving the research, collected and analyzed data. CH discussed the data and contributed to writing the article. DBH also discussed the data and contributed to writing the article.

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Correspondence to Renato Bortoloti or Colin Harte.

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The authors declare no known conflicts of interest.

Ethical Approval

All procedures performed involving human participants were in accordance with the ethical standards of the institutional and national research committee, as well as with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

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All participants provided consent prior to participation. The study was conducted in coherence with all necessary ethical standards and was approved by the appropriate ethics review boards. All the authors have approved the manuscript and agree with submission to the journal.

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Bortoloti, R., Schmidt, M., Harte, C. et al. Feel the Func: Interpreting IRAP Performances Based on Cfunc versus Crel Stimulus Properties. Psychol Rec 73, 363–373 (2023). https://doi.org/10.1007/s40732-023-00557-x

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  • DOI: https://doi.org/10.1007/s40732-023-00557-x

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