In diagnosing reading ability, the analysis should include an investigation of the subject's knowledge of basic words commonly familiar in most children's oral-aural vocabulary. Likewise, any beginning reading instruction program should include some help in learning commonly used words, since these compose a large part of the vocabulary of many reading series and other printed material.
Staten, M. (1972). Teaching a Basic Sight Word Vocabulary. Reading Horizons: A Journal of Literacy and Language Arts, 13 (1). Retrieved from https://scholarworks.wmich.edu/reading_horizons/vol13/iss1/4