“…Third, most contemporary spelling assessments simply classify spelling errors as binary (i.e., either correct or incorrect), thereby missing important information about the linguistic deficits underlying those errors and making relative differences of spelling skill within a population difficult, if not impossible, to discern (Bourassa & Treiman, 2003;Calhoon, Greenberg, & Hunter, 2010;Masterson & Apel, 2013). For example, both SAK and SAINK are incorrect spellings for the word sank, but both reflect different types of linguistic knowledge.…”