“…Studies that compared different informants used the same screening instrument, for example the Autism Spectrum Screening Questionnaire (ASSQ; Echlers, Gillberg, & Wing, 1999) completed by parents and teachers (Matilla et al, 2009). Other studies compared screening instruments for ASD with diagnostic instruments, for example the SCQ or the Children's Social Behavior Questionnaire (CSBQ; Hartman, Luteijn, Serra, & Minderaa, 2006) completed by parents versus Autism Diagnostic Observation Schedule (ADOS; Lord, Rutter, DiLavore, & Risi, 1999) and Autism Diagnostic Interview-Revised (ADI-R; Rutter, Le Couteur, & Lord, 2003) administered by trained professionals (Corsello et al, 2007;de Bildt et al, 2009). The current study is the first to compare different autism specific screening instruments in a very young sample across different informants: parents versus child care workers.…”