“…In the assessment of personality and attitude variables, for example, Ross (1989) found that, after individuals experienced an experimental manipulation designed to change their attitudes, they reported their past attitudes to be more congruent with their current (changed) attitudes than they really were. On the other hand, research has found retrospective reporting to be quite reliable for a variety of other, more behaviorally based measures, including childhood experiences (Cournoyer and Rohner, 1996;Hardt et al, 2006), psychopathology (including anxiety and conduct disorders [Holmshaw and Simonoff, 1996] and attention-defi cit/hyperactivity disorder [Wierzbicki, 2005]), smoking (Bernaards et al, 2001;Kenkel et al, 2003), and alcohol use (Windle, 2005). Even so, more frequently occurring behaviors appear to be more diffi cult to recall with accuracy than infrequently occurring behaviors.…”