“…Chaos is a description of contexts that are over‐stimulating because of environmental disorder (e.g., crowding, noise, clutter) or environmental instability (e.g., changes in housing, school, and family composition; Evans & Wachs, ; Shonkoff, ). Most studies that used the concept of chaos have focused on noise, clutter, and other types of disorder; a much smaller set included indicators of both disorder and instability (Coley, Lynch, & Kull, ; Garrett‐Peters, Mokrova, Vernon‐Feagans, Willoughby, & Pan, ; Raver et al, ; Vernon‐Feagans et al, ; Vernon‐Feagans, Willoughby, & Garrett‐Peters, ). Evidence has shown that disorganization, but not instability, mediates the relations between income and academic achievement (Garrett‐Peters et al, ) and predicts children's behavior at Kindergarten entry (Vernon‐Feagans et al, ).…”