“…However, promising findings in assessing retest reliability of the PBI suggest that the parental evaluation is a considerably stable measure, not affected by confounding variables like dysthymia, neuroticism, depressive episode, or sex (Plantes et al, 1988;Parker, 1990;Lizardi and Klein, 2005;Wilhelm et al, 2005). Furthermore, good validity of the PBI can be concluded from high agreement between sibling ratings (Parker, 1990) as well as from high correlations with according scales in the Adult Attachment Interview (Manassis et al, 1999). Further, although we have shown that total gray matter volume is not affected by this set of prenatal and postnatal factors, we cannot exclude the possibility that other regions beside the hippocampus are similarly affected.…”