Homophily in stable and unstable adolescent friendships: Similarity breeds constancy

This study examines homophily among adolescent friends. Participants were drawn from a community-based sample of Swedish youth who ranged from 11 to 18 years old. A total of 436 girls and 338 boys identified their closest friends and described their own delinquent activities, intoxication frequency, achievement motivation, and self-worth. Correlations and difference scores describe similarity between reciprocally nominated friends on each dimension. Adolescents who remained friends from one year to the next tended to be more similar than those who did not, during the friendship and, to a lesser extent, before the friendship. Comparisons with random pairs of same-age peers revealed that age-group homophily accounts for most of the similarity between unstable friends but only a fraction of the similarity between stable friends.     

Proneness for psychological flow in everyday life: Associations with personality and intelligence

Flow is an experience of enjoyment, concentration, and low self-awareness that occurs during active task performance. We investigated associations between the tendency to experience flow (flow proneness), Big Five personality traits and intelligence in two samples. We hypothesized a negative relation between flow proneness and neuroticism, since negative affect could interfere with the affective component of flow. Secondly, since sustained attention is a component of flow, we tested whether flow proneness is positively related to intelligence. Sample 1 included 137 individuals who completed tests for flow proneness, intelligence, and Big Five personality. In Sample 2 (all twins; n = 2539), flow proneness and intelligence, but not personality, were measured. As hypothesized, we found a negative correlation between flow proneness and neuroticism in Sample 1. Additional exploratory analyses revealed a positive association between flow proneness and conscientiousness. There was no correlation between flow proneness and intelligence. Although significant for some comparisons, associations between intelligence and flow proneness were also very weak in Sample 2. We conclude that flow proneness is associated with personality rather than intelligence, and discuss that flow may be a state of effortless attention that relies on different mechanisms from those involved in attention during mental effort.     

The Effect of Forgiveness on Marital Satisfaction in Relation to Marital Stability

The present study examined the association between forgiveness and marital satisfaction in relation to marital stability. It was a comparative study between first-married and remarried adults involving 787 respondents from the Flanders region in Belgium. The current study showed that, although in the overall forgiveness, there was no significant difference between the first-married and remarried, the first-married significantly differed in two subscales of Enright Forgiveness Inventory (EFI) from the remarried. A significant difference in the marital satisfaction was found between the first-married and remarried adults. The present study also reported a significant positive correlation between forgiveness and general-life adjustment.This study was carried out at the Institute for the Family and Sexuality Sciences, Katholieke Universiteit Leuven, as part of docotral research.     

Religiosity and Marital Satisfaction

This study examined the association between religiosity and marital satisfaction among first-married and remarried adults. Seven hundred and eighty-seven heterosexually married adults from the Flanders region in Belgium completed the Maudsley Marital Questionnaire (MMQ) and a four-item religiosity scale, measuring marital satisfaction and religiosity respectively. This study found the effect of gender and marital status statistically significant (p < .0001) on religiosity. For marital satisfaction, the effect of gender and marital status statistically significant only for MMQ-S (p < .0001) and MMQ-M (p < .0001) respectively. Religiosity had a significant positive correlation (r = .19, p < .0001) with sexual-adjustment problems (MMQ-S). The ultimate aim of this study was to inform marital and relational therapists the value of a possible association religiosity has on marital satisfaction.This study was conducted at the Institute for the Family and Sexuality Sciences, Katholieke Universiteit Leuven, as part of doctoral research.     

智力分布纵论

智力分布本是心理测量的一项重要内容,但众多心理测量教材往往对此论述不足。因此,本文详述有关智力分布的4个论题:(1)正确理解智商组别的组距和组限的表述;(2)4种智力中等标准之比较;(3)3种智力超常标准之比较;(4)如何计算智力分布类别的理论百分比。     

城市贫困人口心理和社会稳定

由于社会转型,产业结构的调整以及个人等方面原因产生了下岗职工、农村进城务工人员和贫困大学生等大量的城市贫困人口。笔者从城市贫困者的个人社会等级评定、对贫富分化现状的态度以及分化程度的容忍度上分析城市贫困者心理差异对社会稳定的影响。     

Postural stability with exhaustive repetitive sit-to-stand exercise in young adults

Previous research has indicated that muscle fatigue due to repeated bouts of physical activity can have negative residual effects on balance; however investigations using multi-joint forms of exercise involved in everyday settings and determination of how control of posture is altered during the physical activity itself are limited. The purpose of this investigation was to evaluate alterations in postural stability before, during, and after prolonged multi-joint STS exercise in healthy young adults. Center of pressure (COP) acquisitions were collected during repetitive STS exercise, while voluntary limits of stability (LOS) testing was performed before, immediately after, and 10 min after STS exercise. By 50% total STS exercise time, fatigue resulted in increased anterio-posterior (y) and medio-lateral (x) COP path lengths (p = 0.003 and p = 0.018 respectively) and an anterior shift of COP at seat-off towards the mid-foot (p = 0.010). No significant change in LOS mean amplitude was found after STS exercise; however a significant fatigue effect resulted in increased COPy sway velocity at maximal lean positions (p = 0.006), but returned to PRE values after 10 min of rest. Declines in postural stability during repetitive STS exercise was associated with reduced control of COP, as well as a reduced ability to stably control COP at extreme postural limits; however, 10 min was adequate in young adults for recovery. These results may have important implications for monitoring fall risk due to acute bouts of exercise induced muscle fatigue from repetitive multi-joint activities such as the STS.     

Consistency in maternal affect and positive vocalization over the first year of life

Consistency in parenting infants has positive developmental outcomes. Yet, the role of socioeconomic status (SES) in consistency of maternal behaviors is not well understood. We investigated individual-order continuity of maternal smile and laughter and positive vocalization from 6 to 12 months of age in 82 mother-infant dyads. Overall, individual differences in maternal smile and laughter, and positive vocalization were consistent across time. A multidimensional measure of SES moderated the association of maternal smile and laughter from 6 to 12 months, such that infants from lower SES families were vulnerable to unpredictable parenting - experiencing a lack of consistency in maternal smiles and laughter.     

Longitudinal Intellectual Assessment of Children With HIV Infection

The objective of this paper was to describe the intellectual development of 39 children with HIV infection. The children received serial evaluations over a 10-year period. Thirty-nine children were assessed with age-appropriate intellectual measures at regular intervals as part of their treatment in the HIV Program of a children's hospital. Children showed an 24-point drop in mean Bayley Mental scores over the first 2 years of life. McCarthy scores remained in the low average range from ages 3–5 years. IQ scores were stable by age 6 in the low average range, and unchanged through age 12. Significant changes in memory, vocabulary, and performance subtests were noted. Children with HIV infection demonstrated a significant decline in mental functioning over the first 2 years of life, fell into the low average range by age 3, and remained in the low average range, with subtle changes in some areas.     

Negative life events and stability of sense of coherence: a five-year follow-up study of Finnish women and men

A strong sense of coherence (SOC) is found to be associated with good mental health. This study investigated (1) whether negative life events affect level of SOC, (2) whether initial level of SOC modifies the effect of negative life events on SOC, and (3) whether stability of SOC differs between genders. The data were derived from the 15-year Health and Social Support study (N= 17,271). Ordinary linear regression analysis was used. Negative life events decreased the level of SOC among both genders irrespective of the timing of the event. The more recent the life event, the lower the SOC. A strong SOC in 1998 did not protect SOC from declining during follow-up. Specific gender differences were not discovered. SOC was related to negative changes in people's environment. Initially strong SOC was not more stable than initially mediocre or weak SOC. Men and women reacted quite similarly to negative life events.