Various authors argue that invented spelling activities with preschool-age children help them to analyse the oral segments of words and to discover the relations between those segments and the corresponding letters. Several studies have shown the impact of invented spelling programmes on early spelling, but few experimental ones have looked at the impact of invented spelling on early reading. Our aim was to assess the impact of an invented spelling programme on children’s early spelling and reading. We worked with 108 five-year-old Portuguese children who were not able to read or write. Their initial cognitive ability, knowledge of letters and phonological awareness were controlled. Children were randomly divided into an experimental and a control group. They were evaluated in a pre- and a post-test in which they were asked to write and read a set of words. The experimental group participated in a 5-week invented spelling programme. We expected the experimental group to have better post-test scores than the control group. Data analysis showed statistically significant differences between the two groups, with the experimental one having better results in spelling and reading than the control group, supporting the idea that the acquisition of spelling and reading may be mutually facilitative.

Our aim in this study was to test two programmes designed to lead preschool children to use conventional letters to spell the initial consonants of words. These programmes differed in terms of the characteristics of the vowels that followed those consonants. The participants were 45 five-year-old Portuguese children whose spelling was pre-syllabic - they used strings of random letters in their spelling, making no attempt to match the oral to the written language. They were divided into two experimental and a control group. Their age, level of intelligence, and phonological awareness were controlled. Their spelling was assessed in a pre- and a post-test. In-between, children from the experimental groups participated in two programmes where they had to think about the relationships between the initial consonant and the corresponding phoneme in different words: In Experimental Group 1, the initial consonants were followed by an open vowel, and in Experimental Group 2, these same consonants were followed by a closed vowel. The control group classified geometric shapes. Experimental Group 1 achieved better results than Experimental Group 2 following open vowels, being more able to generalize the phonological procedures to sounds that were not taught during the programmes. Both experimental groups used conventional letters to represent several phonemes in the post-test whereas the control group continued to produce pre-syllabic spellings.