| Sumario: | Children with autism spectrum disorder (ASD), especially those with low cognitive functioning, have deficits in joint attention. Previous research has found that these children are interested in engaging with social robots. In the present study, we designed a robot drama intervention for promoting responses to joint attention abilities (RJA) of children with low-functioning autism (IQs < 70). Using a stepped wedge design, Chinese-speaking children aged six to eight were randomly assigned to three tiers (N = 18). Children of all three tiers had comparable autism severity, language and cognitive function, and joint attention abilities. Tier 1 first received intervention, followed by Tiers 2 and 3. They watched six dramas in which social robots demonstrated RJA behaviours. The RJA of children of all tiers improved after intervention and such improvement was maintained over time. Despite initiation of joint attention (IJA) not being explicitly taught, IJA of all children was found to improve after intervention. It was, therefore, concluded that a robot drama could enhance the joint attention of children with low-functioning ASD. In comparison to typically developing children, children with autism spectrum disorder (ASD), especially those with low cognitive functioning, have deficits in joint attention. Robot-based drama intervention program was developed to promote responses to joint attention (RJA) abilities of children with low-functioning autism (IQs < 70). Modelling RJA in robot dramas can promote RJA abilities in these children. An improvement in RJA also yielded an increase in the initiation of joint attention (IJA) abilities. Children with low-functioning autism might be able to extract the initiation of joint attention skills from the drama, even though these behaviours were not explicitly taught.
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