Dorthe Bleses|Anders Højen|Laura M. Justice|Philip S. Dale|Line Dybdal|Shayne B. Piasta|Justin Markussen?Brown|Marit Carolin Clausen|E. F. Haghish
The Effectiveness of a Large?Scale Language and Preliteracy Intervention: The SPELL Randomized Controlled Trial in Denmark
Aarhus University|Aarhus University|The Ohio State University|Ramboll (United Kingdom)|The Ohio State University|University of Southern Denmark|University of Southern Denmark|University of Southern Denmark|University of Freiburg
present article reports results realworld effectiveness trial conducted denmark six thousand four hundred eightythree 3 6yearolds designed improve childrens language preliteracy skills children 144 child cares assigned control condition one three planned variations 20week storybookbased intervention base intervention two enhanced versions featuring extended professional development educators homebased program parents pre posttest comparisons revealed significant impact three interventions preliteracy skills 2127 language skills 0416 little differentiation among three variations fidelity indexed number lessons delivered significant predictor outcomes implications realworld research practice considered