Once it selected the topics for review, the Panel also decided how to choose which studies to include in its analysis. To ensure the quality of the work, the Panel agreed to base its conclusions only on studies that had appeared in English in a refereed journal. The Panel limited its review to studies that focused directly on children's reading development from preschool through Grade 12. The Panel also concentrated only on studies that were experimental or quasi-experimental in design. These studies had to include a sample size that was considered large enough to be useful, and the instructional procedures used in the studies had to be well defined.
Phonemes are the smallest units making up spoken language.
English consists of about 41 phonemes. Phonemes combine to form syllables and words. Phonemic awareness refers to the ability to focus on and manipulate these phonemes in spoken words. This remains true under a variety of teaching conditions and with a variety of learners across a range of grade and age levels. The NRP concluded that teaching phonemic awareness to children significantly improves their reading when compared to instruction without any attention to phonemic awareness.