“…A review of the literature has found only a small number of prior studies which have reported data concerning the rate of teacher identification of speech and language impairment amongst particular student populations (Diehl & Stinnett, 1959;Illerbrun, Haines, & Greenough, 1985;James & Cooper, 1966;McKinnon, McLeod, & Reilly, 2007;Okalidou & Kampanaros, 2000;Sanger, Aspedon, Hux, & Chapman, 1995;Whitworth, Davies, Stokes, & Blain, 1993;Williams, 2006). An even fewer number of studies have examined the effectiveness of specific screening tools in supporting teachers to identify students with speech and/or language impairment (Diehl & Stinnett, 1959;James & Cooper, 1966;Illerbrun et al, 1985;Whitworth et al, 1993;Williams, 2006), with the majority of these studies failing to report adequate data on both the numbers of students correctly identified (true positive), and overlooked (false negative).…”