Effectiveness of Phonological Awareness Stimulation in Preschoolers – A Systematic Review

Phonological awareness is a strong predictor of reading and writing skills development. Several programs have been developed and tested for the stimulation of phonological awareness, but the degree of variation among them makes it difficult to compare the different methods. A synthesis of the literature on phonological awareness stimulation programs is needed to examine the effectiveness of PA programs while considering the variability that exists between the methodologies used. This systematic review aimed to 1) synthesize the literature on PA stimulation programs in typically developing children; 2) examine the effectiveness of PA programs; 3) critically appraise the methodology of PA stimulation programs. Central, Medline, Pubmed, Scopus, and Web of Knowledge were used to conduct an extensive literature search. A total of 10 articles met the eligibility criteria and were included in the present study. Results showed that, in general, the phonological awareness stimulation programs carried out in the analyzed research were effective. However, the quality of the methodology varied significantly across studies, showing in some cases a lack of detail in the inclusion criteria, limited training of the professionals who carried out the PA programs, an inconsistency in parent involvement, and a lack of follow-up. Guidelines for future research are discussed to enhance the methodological quality of this line of research and reduce the risk of bias.