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Descubrimiento de grupos sociales, estructura y actualización de estereotipos

Joel E Martinez¹, Rachel H Krasner¹, Laura Rosero¹

¹Department of Psychology, Harvard University.

Journal of experimental psychology. General

|August 21, 2025

Resumen

Los estereotipos de grupo pueden cambiar cuando los individuos se desvían. Un estudio muestra que los miembros altamente desviados son percibidos como separados, alterando las percepciones y creencias del grupo sobre los miembros.

Área de la Ciencia:

Psicología social
Ciencias cognitivas
Ciencias sociales computacionales

Sus antecedentes:

Los estereotipos de grupo son rígidos y contribuyen a la discriminación.
Comprender cómo las representaciones de grupo forman e influyen en las creencias es crucial.

Objetivo del estudio:

Para probar las predicciones de un modelo de aprendizaje de la estructura en la percepción del grupo y la formación de estereotipos.
Investigar cómo la desviación dentro de un grupo afecta su representación y las creencias asociadas.

Principales métodos:

Se llevaron a cabo siete experimentos para examinar las respuestas humanas a la desviación del grupo.
Se midieron las percepciones de los participantes sobre la estructura del grupo y la confianza en las creencias.
Se desarrolló y analizó una nueva medida de precisión estereotipada basada en la similitud de los agentes.

Principales resultados:

El aumento de la desviación condujo a la "subagrupación" y eventual "subtipo" de los agentes desviados.
La confianza en las creencias del grupo disminuyó inicialmente con la desviación, pero aumentó después de la subtipación.
El análisis exploratorio reveló que la precisión estereotipada se correlaciona con la similitud percibida del agente.

Conclusiones:

Las representaciones de grupo son dinámicas e influenciadas por la desviación de los miembros.
La desviación puede conducir a la formación de nuevos subgrupos o a la exclusión de individuos.
La precisión del estereotipo está vinculada a la homogeneidad percibida de los miembros del grupo.

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