“…In these analyses, we found that observed parental harshness was related to increases in child CU behavior from ages 2–4, over and above earlier behavior problems and relevant covariates (Waller, Gardner, Hyde, et al, 2012). Next, using both self-reported parental warmth and two observed measures of parental warmth (assessed via global coding of parent-child interactions in the family home and coding of parental five-minute speech samples; Waller, Gardner, Dishion et al, 2012), we found that parental warmth and CU behavior were reciprocally related from ages 2–3, even taking into account shared method variance across parental reports of higher behavior problems and their parental warmth at both ages 2 and 3 (Waller, Gardner, et al, 2015; Waller, Gardner et al, 2014). Specifically, early parent-reported CU behavior in toddlers predicted fewer observed displays of parental warmth over time, while lower parental warmth simultaneously and uniquely predicted increases in child CU behavior, controlling for earlier and concurrent behavior problems (Waller, Gardner et al, 2014).…”