Abstract

TEIXEIRA, Isabela de Oliveira  and  POSTALLI, Lidia Maria Marson. Delayed matching-to-sample tasks implemented online to individuals with developmental disabilities: A systematic replication. Psicol. teor. prat. [online]. 2024, vol.26, n.2, ePTPPE16142.  Epub Dec 02, 2024. ISSN 1516-3687.  https://doi.org/10.5935/1980-6906/eptppe16142.en.

This study aimed to verify the effect of different delay times in conditional, identity, and arbitrary discrimination tasks applied online among participants with intellectual disabilities and ASD and assess whether the contingencies of cues for engaging in precurrent behaviors (when needed) were relevant to the participant’s performance in the delayed matching-to-sample task. Two young adults with intellectual disabilities and four children with ASD participated. The online procedure consisted of teaching identity matching-to-sample and delayed matching-to-sample tests with 0, 2, 4, 6, and 8 seconds of delay; the same steps were implemented in the arbitrary relationships. If participants answered less than 80% of the tests correctly, they would perform the DMTS tasks with differential reinforcement with oral and/or naming cues. Additionally, after completing the procedure, the participants were asked about their strategies in the DMTS tasks. Six participants performed accurately in the training, conditional identity, and arbitrary discrimination tests. Two participants with intellectual disabilities required an additional procedure to establish arbitrary relationships. The results show that performance worsened as delays increased, especially for those with intellectual disabilities. As for precurrent behaviors, the results suggest that these were relevant for the participants remembering the figures as demanded in the experimental tasks. Future studies are recommended to expand the investigation of remembering and precurrent behaviors in DMTS tasks among the population with developmental delays.

Keywords : memory; precurrent behavior; delayed matching-to-sample; intellectual disability; autism.

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