“…For instance, measures of child engagement with toys and other materials, such as the Engagement Quality Observation System (EQual III; McWilliam & de Kruif, 1998), can provide relevant information, considering associations between process quality and child engagement (e.g, Aguiar & McWilliam, 2012;Raspa, McWilliam, & Ridley, 2001). The three measures used in the present study were not originally developed in Portugal, but two of them have been extensively used in Portugal, with findings indicating their adequacy to the Portuguese child care settings (Barros & Aguiar, 2010;Barros & Leal, 2015;Cadima et al, 2012;Cryer et al, 1999). Although this is the first Portuguese study that used the CLASS-Infant, the training procedure was conducted in close collaboration with one of the authors of the scale.…”