The Screening Test of the Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III Screening Test) is an individually administered instrument designed to briefly assess the cognitive, language, and motor functioning of infants and young **** between 1 month and 42 months of age. The primary purposes are to determine quickly whether a child is progressing according to normal expectations and to determine if further, more comprehensive evaluation is needed. The Bayley-III Screening Test items are a subset of the cognitive, language, and motor items of the Bayley Scales of Infant and Toddler Development, Third Edition (Bayley-III; Bayley, 2006). The Bayley-III Screening Test can be used to identify young ****’* degree of risk for developmental delay and to assist the practitioner in determining whether further evaluation is necessary. By administering the Bayley-III Screening Test, the practitioner can obtain information with which to compare the child to his or her peers in just a few minutes. This approach to assessment enables practitioners to identify challenges early and to recommend interventions at the earliest possible time. The Bayley-III Screening Test is not designed to identify the degree of impairment or specific strengths or weaknesses in cognition, language, or motor functioning, nor should it be used to provide a diagnosis of developmental delay. When in-depth assessment of cognition, language, or motor functioning is indicated by the Bayley-III Screening Test, the full Bayley-III scales should be used to assist in the diagnosis of disorder and to identify areas of relative strength and weakness.
