“…The Atypical Maternal Behavior Instrument for Assessment and Classification (AMBIANCE; Bronfman, Madigan, & Lyons-Ruth, 2008) involves recording the number of atypical behaviors displayed by a caregiver in each dimension during interactions with the infant, assigning an overall level of atypical communication, and classifying the caregiver behavior as ''disrupted'' or ''not disrupted'' in communication with the infant. The AMBIANCE has been used to code atypical caregiver behaviors in a variety of populations and across several contexts, including the Strange Situation (Gervai et al, 2007;Goldberg, Benoit, Blokland, & Madigan, 2003;Grienenberger, Kelly, & Slade, 2005;Madigan, Benoit, & Boucher, in press), unstructured play , reunion episodes outside of the Strange Situation (Forbes, Evans, Moran, & Pederson, 2007), and during faceto-face interactions (Kelly, Ueng-McHale, Grienenberger, & Slade, 2003). Regardless of the context in which atypical caregiver behaviors have been observed, several independent studies implicate some form of markedly anomalous caregiver interactive behaviors in the development of disorganized attachment relationships.…”