prov:value
| - Conversely, children with ADD are somewhat more prone to internalizing disorders such as anxiety or depression (or at least show a marked absence of externalizing disorders) and tend to be more socially isolated or withdrawn than are children with ADHD (Barkley et al., 1990, 1991; Faraone, Biederman, Wever, & Russell, 1998; Edelbrock, Costello, & Kessler, 1984; Goodyear & Hynd, 1992; Lahey et al.,
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