Personality and social skill differences between adults with and without siblings.

Differences in personality and social skills of 146 adults with 1 or more siblings and 51 adults without siblings were investigated to examine the importance of family structure for individual personality development. Participants completed the Social Skills Inventory (SSI; R. E. Riggio, 1989), which measures social and emotional sensitivity, expressivity, and control, and the Eysenck Personality Questionnaire (EPQ; H. J. Eysenck & S. B. G. Eysenck, 1975), which measures the personality factors of Extraversion-Introversion, Neuroticism-Stability, and Psychoticism. Results revealed only a marginal difference between individuals with and without siblings in Neuroticism, and no differences in various social skills or overall social competence. Possible explanations for the lack of differences in social skills between adults with and without siblings are discussed.     

Sensory Processing Sensitivity and its association with personality traits and affect: A meta-analysis

In two Bayesian meta-analyses, we investigated associations between Sensory Processing Sensitivity (SPS) and the Big Five personality traits (MA1) as well as both Positive and Negative Affect (MA2). Moderators were age and the three SPS subscales. In MA1 (8 papers, 6790 subjects), SPS in children correlated with Neuroticism (r = 0.42) but did not with Extraversion, Openness, Agreeableness or Conscientiousness. In adults, SPS correlated with Openness (r = 0.14) and Neuroticism (r = 0.40) but did not with Extraversion, Agreeableness or Conscientiousness. In MA2 (19 papers, 5326 subjects), SPS in children correlated with Negative (r = 0.29) and Positive Affect (r = 0.21), but only with Negative Affect (r = 0.34) in adults. Developmental and measurement aspects are discussed.     

稳定性与可变性：西方儿童青少年“大五”人格发展研究概述

弄清儿童青少年人格发展特点,可为人格发展与教育工作提供参考。文章梳理了近30年西方儿童青少年“大五”人格发展的研究进展,区分了人格发展的两种主要表现形式,并分别从这两方面总结出儿童青少年“大五”人格结构的稳定性、人格特质平均水平的可变性。最后基于现有研究存在的问题,结合当前时代特点,提出未来研究方向。     

成年独生子女自尊水平和主观幸福感的特点及二者间的关系

运用滚雪球式方便取样方法对城市的100位成年独生子女和100位成年非独生子女进行了自尊水平和主观幸福感的测查。结果发现:(1)独生子女的自尊水平和主观幸福感的亚维度——生活满意度均显著高于非独生子女;(2)独生子女的主观幸福感和自尊水平呈现异质性,表现出显著性别和婚姻状况的差异;(3)与非独生子女不同,独生子女自尊水平与主观幸福感之间不存在显著关联。     

Mother–infant interactions with firstborns and secondborns: A within-family study of European Americans

Given the large numbers of families with more than one child, understanding similarities and differences in siblings’ behaviors and in parents’ interactions with their sibling infants is an important goal for advancing more representative developmental science. This study employed a within-family design to examine mean-level consistency and individual-order agreement in 5-month-old sibling behaviors and maternal parenting practices with their firstborns and secondborns (ns = 61 mothers and 122 infants). Each infant was seen independently with mother. Firstborn infants were more social with their mothers and engaged in more exploration with objects than secondborn infants; firstborn and secondborn infants’ behaviors were correlated for smiling, distress communication, and efficiency of exploration. Mothers engaged in more physical encouragement, social exchange, didactic interaction, material provisioning, and language with their firstborns than with their secondborns. Notably, only maternal nurturing (e.g., feeding, holding) did not differ in mean level when mothers were with their two infants. However, mean differences in mothers’ social exchange and material provisioning with their two children attenuated to nonsignificance when controlling for differences in siblings’ behaviors. Individual-order agreement of mothers’ behaviors with firstborn and secondborn infants (across an average of almost 3 years) was only moderate. These findings suggest that mother–firstborn interactions may differ from mother–secondborn interactions. Future research should move beyond studying mother–firstborn dyads to understand broader family and developmental processes.     

Differences in self-talk frequency as a function of age, only-child, and imaginary childhood companion status

In three studies, we examined differences in the frequency with which people report talking to themselves. Using a standardized measure of self-talk frequency, the Self-Talk Scale (Brinthaupt, Hein, & Kramer, 2009), we collected information about college student participants’ age, sex, and family configuration (i.e., only or sibling child), and whether they had an imaginary companion in childhood. In Study 1, significant differences in self-talk were found between different age groupings. In Study 2, children without siblings reported more self-talk than children with siblings. Finally, in Study 3, respondents who reported having an imaginary companion in childhood also reported significantly more self-talk than those who did not have an imaginary childhood companion. We discuss the self-regulatory and developmental implications of these results.     

Predicting Growth Curves of Early Childhood Externalizing Problems: Differential Susceptibility of Children with Difficult Temperament

Using an accelerated longitudinal design, the development of externalizing problems from age 2 to 5 years was investigated in relation to maternal psychopathology, maternal parenting, gender, child temperament, and the presence of siblings. The sample consisted of 150 children selected at age 2–3 years for having high levels of externalizing problems. Parenting was measured using observational methods, and maternal reports were used for the other variables. Overall, mean levels of externalizing problems decreased over time, and higher initial levels (intercept) were related to a stronger decrease (negative slope) in externalizing problems. Results showed that higher levels of maternal psychopathology were related to less decrease in early childhood externalizing problems. Parental sensitive behavior predicted a stronger decrease in externalizing problems, but only for children with difficult temperaments. A stronger decrease of externalizing problems in children with older siblings also pertained only to children with difficult temperaments. Thus, temperamentally difficult children appear to be more susceptible to environmental influences on the development of externalizing behaviors. Our results indicate that the role of siblings in early childhood externalizing problems deserves more research attention, and that intervention efforts need to take into account temperamental differences in children’s susceptibility to environmental influences.     

Personality and reasoning ability during retirement age: Report from a Swedish population-based longitudinal study

We examined the association between personality and level and change in reasoning ability in a population-based sample of older adults (62–68 years) using a three-year annual follow-up longitudinal study design (HEARTS; N = 3851). Personality traits were measured using the Mini-IPIP scale and reasoning using a short form of Raven’s Matrices. Findings from a structural equation model, controlling for age, education, and sex, revealed that higher levels on extraversion, conscientiousness, and neuroticism were associated with lower reasoning ability (βs: −0.17 to −0.09). Higher levels of openness were associated with better reasoning (β: 0.16). We found no association with rate of change. This evidence replicates previous findings demonstrating that personality traits are associated with individual differences in cognition among older adults.     

大五人格5个维度及10个面的发展水平——基于我国15～75岁横断样本调查

基于人格毕生发展理论及中国社会文化背景,调查了我国从青少年到老年3192名被试,探究了中国人大五人格5维度及10个面毕生发展水平。总体上,年龄与神经质、焦虑、抑郁、活跃、开放性、审美、创意显著负相关,与外倾性、宜人性、尽责性、自信、利他、顺从、条理和自律显著正相关。在60岁以下的人群中,年龄大的个体神经质更低,而在大于60岁的人群中,年龄大的个体神经质反而更高;在50岁以下的人群中,年龄大的个体外倾性水平相对较高,但50岁之后年龄大的个体外倾性相对较低;整体上,年龄大的个体开放性水平相对较低,而年龄大的个体宜人性水平反而更高;年龄大的个体尽责性水平也相对较高,但较之40到49岁群体而言,50岁以上群体的尽责性则相对较低。男性和女性不同年龄群体的大五人格具有一定差异性,特别是男性的尽责性高于女性,以及女性的神经质高于男性等性别差异。进一步分析了年龄与大五人格10个面的关系,描绘了不同年龄群体10个面的发展水平。     

Personality Trait Differences Between Young and Middle‐Aged Adults: Measurement Artifacts or Actual Trends?

A growing body of research demonstrates that older individuals tend to score differently on personality measures than younger adults. However, recent research using item response theory (IRT) has questioned these findings, suggesting that apparent age differences in personality traits merely reflect artifacts of the response process rather than true differences in the latent constructs. Conversely, other studies have found the opposite—age differences appear to be true differences rather than response artifacts. Given these contradictory findings, the goal of the present study was to examine the measurement equivalence of personality ratings drawn from large groups of young and middle‐aged adults (a) to examine whether age differences in personality traits could be completely explained by measurement nonequivalence and (b) to illustrate the comparability of IRT and confirmatory factor analysis approaches to testing equivalence in this context. Self‐ratings of personality traits were analyzed in two groups of Internet respondents aged 20 and 50 (n = 15,726 in each age group). Measurement nonequivalence across these groups was negligible. The effect sizes of the mean differences due to nonequivalence ranged from –.16 to .15. Results indicate that personality trait differences across age groups reflect actual differences rather than merely response artifacts.     

Prevalence and Predictors of Background Television Among Infants and Toddlers from Low-Income Homes

TV use could be detrimental to children’s development because it may displace enriching activities like shared reading and caregiver-child interaction or disrupt children’s interactions with the adults in their lives by distracting both parties. Some prior research has shown that demographic factors (maternal education, siblings) and maternal mental health (depression risk and parenting stress) may predict household TV, but findings are mixed. Household TV is defined here as whether or how much the TV is on in the home. In the current study, we examine the following research questions: (a) what is the prevalence of household TV (i.e., whether or how much the TV is on) in the homes of infants and toddlers in a sample of families from low-income homes? and (b) do demographic characteristics (i.e., maternal education level and presence of siblings in the home), and maternal mental health (i.e., depression risk and parenting stress) predict household TV (i.e., whether or how much the TV is on)? Mothers (N = 220) reported on their household TV, education level, siblings in the home, depression risk, and parenting stress when children were four to seven months of age and again at 15–19 months of age. Results showed a high level of household TV, especially during infancy. Furthermore, education level, but not siblings, depression risk, or parenting stress, was related to household TV during infancy and toddlerhood. These findings are discussed in relation to prior research and the potential for informing future interventions or education efforts.     

Quantitative autism traits in first degree relatives: evidence for the broader autism phenotype in fathers, but not in mothers and siblings

Autism spectrum disorder (ASD) symptoms are present in unaffected relatives and individuals from the general population. Results are inconclusive, however, on whether unaffected relatives have higher levels of quantitative autism traits (QAT) or not. This might be due to differences in research populations, because behavioral data and molecular genetic research suggest that the genetic etiology of ASD is different in multiplex and simplex families. We compared 117 unaffected siblings and 276 parents of at least one child with ASD with 280 children and 595 adults from the general population on the presence of QAT using the Social Responsiveness Scale (SRS). Mean SRS scores for siblings, control children, parents and control adults were 25.4, 26.6, 33.7 and 32.9. Fathers of children with ASD showed significantly higher levels of QAT than controls, but siblings and mothers did not. We could not detect a statistically significant difference in SRS scores between relatives from simplex and multiplex families. These results do not support the theory of differential (genetic) etiology in multiplex and simplex families and suggest that a carried genetic risk is generally not expressed phenotypically in most relatives, except in fathers.     

Extending the spectrum idea: child personality,parenting and psychopathology

The spectrum hypothesis, postulating that differences between referred and non‐referred samples are confined to mean level differences, is elaborated by exploring whether the covariation between child problem behaviour and its predictors—child personality and parenting, rated by mothers—is similar in referred (N = 205) and non‐referred (N = 596) children and whether personality by parenting interactions can be generalized across samples. Results showed significant mean level differences for all the variables. Both personality and parenting explained problem behaviour, with some differences in strength of the effects across samples. Parenting by personality interactions mainly predicted externalizing behaviour, with benevolence and conscientiousness as the most prominent moderators. Results confirmed that moderators of problem behaviour operate similarly in the two samples, thus corroborating the spectrum hypothesis. Copyright © 2006 John Wiley & Sons, Ltd.     

Personality characteristics of research volunteers

We evaluated Big Five personality factor differences between research volunteers and nonvolunteers. In the first study, 158 military officers were asked to participate in a mail survey. The personality scores of the officers were available from an archival data set. In our second study, adult siblings from large families were invited to participate in extensive clinical epidemiological evaluations. The personality scores of volunteers (N = 55) and nonvolunteers from the same families (N = 29) were estimated from sibling ratings made by those who participated in the study. In both studies, respondents, compared to nonrespondents, were found to be significantly lower in Neuroticism and higher in Conscientiousness. The second study further indicated respondents as being higher in Extraversion and Agreeableness. Copyright © 2007 John Wiley & Sons, Ltd.     

To Love and Play: Testing the Association of Adult Playfulness with the Relationship Personality and Relationship Satisfaction

It is hypothesized that playfulness in adults is positively associated with relationship satisfaction and that specific types of attachment and love are related with this trait. Findings, based on two samples of adults that are currently in a relationship (N?=?161 and 598), show that playfulness is positively associated with relationship satisfaction—albeit low in effect size. Playfulness shares about 17 % overlapping variance with different types of love and attachment; particularly, Seduction, low Market Orientation, Attachment, and Love were predictive for playfulness. While gender differences only played a minor role it was shown that playfulness mediates about 5.7 % of the gender differences in the inclination to Sexuality. Overall, findings are in the expected direction. The discussion highlights the importance of considering multidimensional measures for playfulness and satisfaction and gives future research directions.     

Personality Psychology: Lexical Approaches, Assessment Methods, and Trait Concepts Reveal Only Half of the Story—Why it is Time for a Paradigm Shift

This article develops a comprehensive philosophy-of-science for personality psychology that goes far beyond the scope of the lexical approaches, assessment methods, and trait concepts that currently prevail. One of the field’s most important guiding scientific assumptions, the lexical hypothesis, is analysed from meta-theoretical viewpoints to reveal that it explicitly describes two sets of phenomena that must be clearly differentiated: 1) lexical repertoires and the representations that they encode and 2) the kinds of phenomena that are represented. Thus far, personality psychologists largely explored only the former, but have seriously neglected studying the latter. Meta-theoretical analyses of these different kinds of phenomena and their distinct natures, commonalities, differences, and interrelations reveal that personality psychology’s focus on lexical approaches, assessment methods, and trait concepts entails a) erroneous meta-theoretical assumptions about what the phenomena being studied actually are, and thus how they can be analysed and interpreted, b) that contemporary personality psychology is largely based on everyday psychological knowledge, and c) a fundamental circularity in the scientific explanations used in trait psychology. These findings seriously challenge the widespread assumptions about the causal and universal status of the phenomena described by prominent personality models. The current state of knowledge about the lexical hypothesis is reviewed, and implications for personality psychology are discussed. Ten desiderata for future research are outlined to overcome the current paradigmatic fixations that are substantially hampering intellectual innovation and progress in the field.     

Old dog,new tricks: Age differences in dog personality traits,associations with human personality traits,and links to important outcomes

Work examining dog personality is relatively new, so the degree to which dog personality differs by age, predicts important dog outcomes, and is correlated with human personality is unclear. In a sample of 1681 dogs (M_age = 6.44 years, SD = 3.82; 46.2% Female; 50% purebred) and their owners, older dogs were less active/excitable compared to younger dogs. Aggression toward people, responsiveness to training, and aggression toward other animals were highest among 6–8 year old dogs. Dog personality was associated with important dog outcomes—chronic health conditions, biting history, and human-dog relationships. We build on previous research by examining demographic differences in dog personality and associations between dog personality and outcomes for both dogs and humans.     

Birth order differences in normal personality traits: Perspectives from within and outside the family

The hypotheses of Sulloway (1996) regarding birth order differences in five-factor model personality traits were tested in a sample of 231 college students with the NEO Five-Factor Inventory (NEO-FFI; Costa & McCrae, 1992). Data were collected from three sources (self, peer, and parent) to systematically evaluate previous observations that birth order differences are more commonly found when ratings are obtained from family members than from observers outside the family (Ernst & Angst, 1983). Using a between-family design, students were selected only from families with two or three full biological siblings and no half-siblings, step-siblings, or adopted siblings. Firstborn (n = 103) and laterborn (n = 128) students were compared using NEO-FFI ratings by the self, by a same-sex college peer, and by a biological parent. No birth order differences were found for any of the five NEO-FFI scores using any of the three rating sources. Effect sizes (Cohen’s d) were less than .20 for all comparisons. Suggestions for new approaches to the study of birth order differences are considered, including the use of within-family designs and more contextualized personality variables.     

Self-concepts of adolescent siblings of children with mental retardation

Self-concepts of 70 adolescent siblings of children with profound levels of mental retardation were investigated. Their mean self-concept was compared with a matched group of 70 adolescent siblings of children without profound levels of retardation. Using the Tennessee Self-concept Scale, two variables (maternal self-concept and siblings' self-concept) were assessed for differences between siblings and mothers (the target group) of mentally retarded children and siblings and mothers (the comparison group) of children without mental retardation. No significant mean difference between the two groups suggests no special difficulties in psychosocial adjustment for siblings of the mentally retarded.