Annotation: Growing up as a Twin: Twin‐Singleton Differences in Psychological Development

The Personalities of Twins: Just Ordinary Folks

“…This is true for questionnaire reports of maladjustment and psychopathology among children and adolescents (Rutter & Redshaw, 1991), maternal reports of problem behaviors in 2 to 3-year-old children (Oord et al, 1995), and selfreports of depression and anxiety among adults (Kendler et al, 1995). It is also true for more severe disorders seen in hospital settings such as schizophrenia, bipolar depression, and functional psychoses (Chitkara et al, 1988;Kringlen, 1967;Rosenthal, 1960), and for disease-related physical and lifestyle characteristics in adult women (Andrew et al, 2001).…”

A Twin‐Singleton Comparison of Problem Behaviour in 2‐3‐Year‐Olds

“…A second set of reasons for twin-singleton differences is associated witb the upbringing and life experiences of twins {Rutter Sc Redshaw, 1991). Parent-cbild interactions may be different for twins versus nontwins.…”

Twins and Friendship

“…A raised risk of psychopathology among twins is not established. Rutter and Redshaw (1991) concluded from their extensive review of the literature that "overall the risk for socioemotional behavioural disturbance in twins is not much different from that found in singletons" (p. 892). However, in the 12 years since this review studies have continued to pursue the hypothesis that the twin situation raises risk.…”