Learning to read and write are essential academic skills that children develop during their early years of primary school. These skills are supported by various predictive indices that emerge in early childhood. This review has three main goals: to identify which factors are closely examined as predictors for reading and writing, specifically decoding and encoding skills, in different populations and languages (Objective 1); to assess the longitudinal relationship between these predictors and reading and writing skills (Objective 2), considering difficulties or disorders in these areas (Objective 3), during school-age. Using the PRISMA methodology, 81 articles were reviewed. As a first result, there is a significant difference in the number of studies investigating the relationship between predictors and reading (n = 75) compared to writing (n = 18). The most extensively studied predictors for both skills are phonological awareness, language skills, executive functions, rapid automatized naming, and non-verbal cognitive skills. English is the most studied language. Results indicated variability in the relationship between predictors and reading/writing, possibly due to differences in the analyzed populations, chosen outcome measures, and statistical analyses. Additionally, few studies explored the long-term connection between predictors and learning difficulties. In summary, recognizing the multifaceted nature of predictive factors for reading and writing is crucial, and early screening is important for tailored preventive interventions in case of early deficiencies. Future research should delve into writing, conduct cross-cultural studies with diverse languages, and explore the role of predictive factors in understanding reading and writing difficulties or disorders.

Previous studies suggest that lexical competence is an important factor that influences reading skills and spelling accuracy in primary school children. Understanding the relationship between these skills will provide valuable insights to improve reading and writing enhancement and intervention strategies. The aim of this pre-post longitudinal study is to examine the effectiveness of an enhancement program, in which there are activities proposed through a narrative and metacognitive methodology, designed to develop the cognitive processes of lexical acquisition and its effects on reading and writing ability. A total of 74 primary school children (M-age = 7.04 years) participated in the research. They were divided into groups: experimental, which carried out the enhancement, and control groups, which carried out the typical school program. The results show that children who carried out the enhancement obtained higher scores in reading skills, specifically in reading accuracy and text comprehension and spelling accuracy, in comparison with their peers in the control group. These results suggest that strengthening the lexical semantic pathway, as theorized by Coltheart’s two-way model, can lead to improved reading comprehension and diminished reading errors and spelling inaccuracies.

This study investigates the emergence of sound-sign correspondence in Italian-speaking 5-year-old pre-schoolers. There are few experimental studies on the precursors of reading and writing skills and those existing mainly focus on letter knowledge or logographic processing of words in pre-schoolers. This paper evaluates and compares 5-year-old children’s use of the logographic processing or the use of sound-sign processing to decode target words in original and modified versions. Furthermore, we verify whether pre-schoolers’ type of reading words (logographic versus sound-sign processing) vary in accordance with children’s socio-cultural differences (i.e., type of school and socio-cultural information from parents). This study tested 94 children (M-age = 5 years and 8 months) at the end of the last year of preschool. Six stimulus logos were used to evaluate children’s ability to decode words and the type of decoding (logographic or sound-sign processing). The Chi-square results confirm that the achievement of the correspondence between sound-sign at the base of reading and writing has already started in preschool. Our findings shed light on a significant proportion of pre-schoolers who can already read words via sound-sign processing or show the emergence of notational awareness, while the others still rely on logographic processing. Moreover, the results show that pre-schoolers’ notational awareness is related to socio-cultural characteristics pertaining to schools and families. These findings suggest that 5 years is an important age for the disentanglement between logographic and sound-sign correspondence in pre-schoolers and provide useful implications for theory and practice.

Understanding the learning process of reading and writing requires an in-depth analysis of the predictive indices that determine their development. Their study is fundamental to both research and clinical practice, enabling the implementation of targeted educational techniques and the early identification of children at risk of learning disorders. This study explores the relationship between these indices and reading and writing skills through a systematic PRISMA review. Through a comprehensive search of various databases, 102 articles were identified that met the inclusion criteria. The results reveal considerable interest in the scientific community in this topic, underlining the multi-componential nature of learning processes. However, while the main focus has been on reading, there is a dearth of studies on writing ability, just as in the face of a greater study of the proximal stages to school age, there is a dearth of studies with an assessment during early childhood. Furthermore, the review showed a limited focus of the literature on predictors of specific learning disorders, and an exclusive emphasis on certain types of predictive indices, leaving out others of equal importance. There is therefore a need for further research into this topic, encouraging research aimed at overcoming the limitations currently encountered.