Neonatal Behavioral Assessment Scale (NBAS), a scale developed by T. Berry Brazelton and colleagues for evaluating the neurological condition and behavior of a newborn by assessing his or her alertness, motor maturity, irritability, consolability, and interaction with people. It consists of a series of 27 reaction tests, including response to inanimate objects, pinprick, light, and the sound of a rattle or bell. The individuality of an infant may be demonstrated for parents by the scale, and some researchers theorize that the quality of the parent-child relationship may be predicted.
