The Impact of Morphological Intervention on Literacy Knowledge and Reading Motivation: A Cluster-Randomized Comparison Trial in Diverse Socioeconomic Status Kindergartens

Abstract

Purpose: This study investigated the effectiveness of a storytelling-based morphological intervention program on the language and literacy knowledge and reading motivation of kindergarten children from low and mid socioeconomic status (SES) backgrounds. It also explored how these groups compared in change scores against a non-intervened high SES group. Method: Employing a cluster randomization approach, this study included 158 kindergarten children, comprising intervention and comparison groups from low and mid SES backgrounds, as well as a non-intervened high SES group. Assessments were conducted on morphological awareness (MA), print concepts, vocabulary, and reading motivation. Results: Children in the intervention groups showed better performance in MA and print concept scores than those in their respective comparison groups. The mid SES intervention group also displayed significant improvement in vocabulary and motivation scores compared to its counterpart. When examining the effects of SES on change scores, the low SES intervention group achieved superior results in vocabulary and print concept scores compared to both the mid SES intervention and the non-intervened high SES groups. For reading motivation, the mid SES group outperformed the low SES group. Conclusions: The morphological intervention program using storytelling positively impacts both the literacy skills and reading motivation of kindergarten children, especially those from low and mid SES backgrounds. This study emphasizes the significance of designing interventions that cater to the distinct educational needs of children from different SES backgrounds.