“…A summary of these results is provided in Table 1. Palincsar & Brown (1984) developed and investigated reciprocal teaching as an approach incorporating the early stage relationships Shared book reading was not developed by any one researcher or group of researchers though Holdaway (1979) is credited for the origins of the approach Research Type 4: Efficacy Researchers investigated reciprocal teaching in regular education settings but the intervention was conducted by trained experimenters (e.g., Alfassi, 1998;Gilroy & Moore, 1988;Klingner & Vaughn, 1996;Lysynchuk et al, 1990;Marston et al, 1995) No studies were found that examined shared book reading under ideal circumstances (WWC, 2010(WWC, , 2015 Research Type 5: Effectiveness Researchers investigated reciprocal teaching conducted by regular classroom teachers in their own classes (e.g., Kelly et al, 1994;Marks et al, 1993;Westera & Moore, 1995) Researchers investigated shared book reading conducted by regular classroom teachers in their own classes (e.g., Box & Aldridge, 1993;Justice et al, 2010) and by parents at home (e.g., Bojczyk et al, 2016;Han & Neuharth-Pritchett, 2015) Research Type 6: Scale-up Researchers investigated reciprocal teaching with populations other than the original population of adolescent students and in online delivery (e.g., Fuchs et al, 2001;Mandel et al, 2013) Researchers investigated shared book reading with populations other than the original population of preschool children at-risk for later reading difficulties (e.g., Piasta et al, 2012;Pollard-Durodola et al, 2011) The research on shared book reading identifies the concept of emergent literacy as foundational to the intervention (Research Type 1), which posits that children learn about literacy from birth until conventional reading and writing instruction. Research demonstrating that home literacy activities of preschool children vary by socioeconomic status and may account for differences in literacy achievement appeared in the research as early stage or exploratory in developing the model (Research Type 2).…”