Attachment Disorder Behavior Following Early Severe Deprivation: Extension and Longitudinal Follow-up: "Results
Analyses revealed a close association between duration of deprivation and severity of attachment disorder behaviors. In addition, attachment disorder behaviors were correlated with attentional and conduct problems and cognitive level but nonetheless appeared to index a distinct set of symptoms/behaviors. Finally, there was marked stability in individual differences in attachment disorder behaviors and little evidence of a mean decrease over this 2-year period.
The findings offer construct validation for the attachment disorder construct and highlight clinical and conceptual questions that require further research."