Table 5.

Non-experimental articles classification.

Type	Definition	Ref.
Review	These articles review robotic rehabilitation for cognitive training and review the IT platforms evaluated and RAAT for ASD children.	Yuan et al., 2021 [3] DiPietro et al., 2019 [5]
Framework	These articles provide a model/framework or architecture in the context of robot-assisted therapy, for example, testing the effect of a human-looking robot using the Bayesian model. They also present the theoretical framework in the context of RAAT tasks for children with ASD and a propose sensing framework with multi-sensory configuration and fusion.	Feng, Jia, & Wei, 2018 [38] Ueyama, 2015 [39] Baraka, Melo, Couto, & Veloso, 2020 [40] Cai et al., 2019 [41]
Overview	These articles provide an overview of the ways in which the robot can engage autistic children. Also, they present an overview of projects on progress, such as Kaspar’s robot and CARER-AID projects. Both aimed at verifying the effects of the introduction of a humanoid robot in the clinical routine.	Conti et al., 2020 [37] Robins & Dautenhahn, 2018 [42] Wood, Zaraki, Robins, & Dautenhahn, 2021 [43]
Survey	These articles present a survey of expectations about the role of robots in robot-assisted therapy for children with ASD.	Coeckelbergh et al., 2016 [44]
Guidelines	These articles provide guidelines for the design of social robots to be implemented as RAAT for children with ASD. Moreover, some articles present an alternative to implementing synchronous and asynchronous therapeutic sessions.	Huijnen et al., 2017 [4] Robins & Dautenhahn, 2014 [6] Ramirez-Duque et al., 2021 [45] Lytridis et al., 2020 [46]