Type A behaviour in pre-school children: Interrater reliability, stability over six months and subcomponents

Type A behaviour was measured in 250 boys and 245 girls (ages 3-7) using a Swedish version of Matthews' Youth Test for Health (MYTH). In addition, speech and voice characteristics (speed, loudness, response latency) were measured. Each child was independently rated by two play group leaders and measurements were repeated after a six month interval. Interrater reliability (first session) was 0.76 for both sexes and did not change with the age of the child. Boys obtained significantly (p less than 0.0001) higher scores than girls. Correlations over the six month period were 0.64 and 0.60 (p less than 0.001) for the two possible combinations of different raters and slightly higher (0.75 and 0.68, p less than 0.001) when the same rater was used. Two components of Type A behaviour were identified from a factor analysis of the data: impatience and competitiveness, and they accounted for 57% of the total variance. As for the total scale, boys obtained significantly higher scores than girls on both subscales. Scores on the competitiveness scale increased systematically with age. Speech and voice characteristics correlated significantly with Type A scores (total Type A behaviour: r = 0.50, using different raters, and 0.71, using the same raters, p less than 0.001) and, once again, boys obtained significantly (p less than 0.001) higher scores than girls. The results are in close agreement with the American findings from the original scale. It was concluded that the scale provides a reliable and valid instrument for measuring Type A or Type A-like behaviours in pre-school children.     

Familial similarity in Type A behaviour and physiological measurements as related to sex

Thirty-one families with pre-school children were examined with regard to Type A behaviour and cardiovascular and neuroendocrine measurements. Type A scores (MYTH) of the children from the ages of three to six were positively correlated with independent Type A measurements (Jenkins Activity Survey, Bortner Type A scale) of the parents (significant for fathers but not for mothers). The children's resting systolic blood pressures were significantly correlated with maternal and paternal values, while no significant familial aggregation was found for diastolic blood pressure, heart rate, catecholamine or cortisol excretion. The children's systolic and diastolic blood pressures and adrenaline excretion were significantly correlated between ages three and six. The results are consistent with the assumption that genetic as well as environmental factors contribute to the development of Type A behaviour. No significant association was found between Type A scores and physiological measurements during routine activities in the children or the adults.     

Stability and change in feelings of loneliness: A two-year prospective longitudinal study of advanced alcohol abusers

In order to study the changing nature of loneliness in a prospective design, 78 alcoholics were examined twice with an interval of two years. Change scores in loneliness were correlated with change scores in social network, psychological well-being, life-satisfaction, activities, adaptation to one's work and non-work situation, psychiatric symptoms and alcohol consumption. In addition, a step-wise multiple regression analysis with loneliness change as the dependent variable was performed. Change in loneliness was accompanied by changes in well-being (especially indolence, self-esteem and perceived treatment from others), mood-related psychiatric variables and satisfaction with autonomy and life as a whole. However, other variables, like satisfaction with one's social network and a number of non-cyclic psychiatric disorders, did not change along with loneliness, despite stable cross-sectional links. The discrepancy between the cross-sectional and the longitudinal correlation patterns may be indicative of different forms of loneliness in regard to temporal stability.     

Second best choices and change in risk-taking

Subjects were to reveal their best as well as their second best choices in so-called choice-dilemma problems. It was found that the second best choices consistently tended to be more risk-filled than the best choices. Implications of this finding are discussed.     

Cardiovascular and neuroendocrine activity in preschool children: Comparison between day-care and home levels

Thirty boys and 30 girls at nine day-care centers were examined at the mean age of 3.5 and 5.5 with regard to systolic and diastolic blood pressure, heart rate and neuroendocrine activity (urinary catecholamines and cortisol) during a day at their day-care center and in their home, respectively. Compared to home levels, day-care was associated with increased heart rate, epinephrine and norepinephrine excretion and decreased cortisol levels. Systolic blood pressure decreased at the day-care centers at the age of 3.5 and increased at the age of 5.5. No significant sex differences were found. The possible role of mental and physical arousal and the dissociation between the sympathetic-adrenal medullary and the pituitary-adrenal cortical responses are discussed.     

The stability of alexithymia during work in a high‐stress environment: A prospective study of Swedish peacekeepers serving in Kosovo

Larsson, M. R., Bäckström, M., Michel, P.‐O. & Lundh, L.‐G. (2010). The stability of alexithymia during work in a high‐stress environment: A prospective study of Swedish peacekeepers serving in Kosovo. Scandinavian Journal of Psychology. We applied a prospective design to reinvestigate the issue whether the sub‐domains of alexithymia could be considered stable traits or distress‐related states. Assessments of alexithymia and subjective distress were conducted before deployment to Kosovo in a sample of male peacekeepers. A second assessment was conducted approximately six months later during the final phase of service. The results showed evidence of moderate to high relative stability in all alexithymic sub‐domains. It was also found that a relative change in subjective distress predicted a relative change in difficulty identifying feelings and difficulty describing feelings but not in externally oriented thinking. We suggest therefore that the alexithymic sub‐domains could be considered relatively stable traits but that the level of difficulty identifying and describing feeling varies with the level of subjective distress.