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51.
Leblanc N Boivin M Dionne G Brendgen M Vitaro F Tremblay RE Pérusse D 《Journal of abnormal child psychology》2008,36(7):977-987
The objectives of this study were to establish the different developmental trajectories of hyperactive-impulsive behaviors on the basis of both mother and father ratings at 19, 32, 50, and 63 months, and to examine the predictive validity of these trajectories with respect to later hyperactive-impulsive behaviors, as rated by teachers in the first 2 years of school. Hyperactive-impulsive behaviors were assessed in a population-based sample of 1,112 twins (565 boys and 547 girls) at 19, 32, 50, and 63 months of age. The results revealed a differentiated and consistent view of developmental trajectories of hyperactive-impulsive behaviors derived from these repeated assessments, with 7.1% of children seen by mothers (7% for fathers) as displaying high and stable hyperactive-impulsive behaviors. According to mother ratings, children on a high-chronic trajectory were more likely than other children to display hyperactive-impulsive behaviors at 72 and 84 months according to their teachers. Repeated measures over time and father-based trajectories significantly added to the prediction teacher later ratings of hyperactive-impulsive behaviors. These results support the predictive validity of parental assessment of hyperactive-impulsive behaviors during the preschool years and their use to identify children at risk for further evaluation and possible intervention. 相似文献
52.
Thewissen V Bentall RP Lecomte T van Os J Myin-Germeys I 《Journal of abnormal psychology》2008,117(1):143-153
Studies investigating the relationship between self-esteem and paranoia have specifically focused on self-esteem level, but have neglected the dynamic aspects of self-esteem. In the present article, the authors investigated the relationship between self-esteem and paranoia in two different ways. First, 154 individuals ranging across the continuum in level of paranoia were studied with the Experience Sampling Method (a structured self-assessment diary technique) to assess the association between trait paranoia and level and fluctuation of self-esteem in daily life. Results showed that trait paranoia was associated with both lower levels and higher instability of self-esteem. Second, the temporal relationship between momentary (state) paranoia and self-esteem was investigated in the daily life of these individuals. Results showed that a decrease in self-esteem was associated with an immediate increase in paranoia. The findings indicate that paranoid individuals are not only characterized by a lower level of self-esteem but also by more fluctuations in their self-esteem and that fluctuations in self-esteem predict the degree of subsequent paranoia. These results are consistent with the hypothesis that paranoia is associated with dysfunctional strategies of self-esteem regulation. 相似文献
53.
This paper reports the results of a two-sample study—a sample of medical reps from pharmaceutical companies (N = 232) and a sample of respondents from multiple organizations (N = 221)—of the relationships between pay satisfaction, organizational commitment, and turnover intentions. Hypotheses were
tested using a multidimensional perspective on both pay satisfaction and organizational commitment. Results from both samples
show that the effect of pay satisfaction on intended turnover is fully mediated by affective commitment and perceived sacrifice
commitment. Pay satisfaction is also significantly related to normative commitment but the latter has no influence on the
outcome. Finally, in the sample of medical reps, pay satisfaction significantly reduces commitment based on lack of employment
alternatives, a finding that is interpreted in light of the characteristics of pay systems in pharmaceutical companies. Future
directions on compensation satisfaction and commitment research are discussed. 相似文献
54.
When two masked targets (T1 and T2) are visually or auditorily presented in rapid succession, processing of T1 produces an attentional blink (AB)--that is, a transient impairment of T2 identification. The present study was conducted to compare the relative impact of masking T1 and T2 between vision and audition. Within a rapidly presented sequence, each of the two verbal targets, discriminated by their offset (Experiment 1) or their onset (Experiment 2), could be followed by either a single item, acting as a mask, or a blank gap. Masking of T2 appeared to be necessary for the occurrence of the AB for both the visual and the auditory modality. However, whereas masking of T1 affected the expression of the visual AB in both experiments, the same effect was observed in the auditory modality only when the targets varied at the onset. These results provide further evidence that processing auditory and visual information is restricted by similar attentional limitations but also suggest that these limits are constrained by properties specific to each sensory system. 相似文献
55.
Forget-Dubois N Boivin M Dionne G Pierce T Tremblay RE Pérusse D 《Infant behavior & development》2007,30(3):453-465
Children's negative characteristics are thought to be a factor in evoking hostile parenting responses. This can result in genotype/environment correlations (rGE) in which children's heritable traits influence the parenting they experience. We did genetic analyses on 292 mothers' self-reported hostile-reactive behaviors toward each of their twins at 5, 18 and 30 months. Finding heritability for a parenting behavior analyzed as a child phenotype is evidence of rGE correlation. The heritability of maternal behavior was modest (29% at 5 months, 0% at 18 months, and 25% at 30 months) and longitudinal analyses indicated that genetic factors at 5 and 30 months were uncorrelated. Common environment factors, probably reflecting characteristics of the mothers, were the main source of variance at the three ages and were highly correlated through time. We concluded that children's heritable characteristics evoked maternal negative response at specific times, but were not responsible for the stability of maternal hostility from infancy to toddlerhood. 相似文献
56.
We examined the spatial and temporal limitations of the visual corrective process in goal-directed aiming, as well as gender differences in online control. An initial experiment was conducted to test the utility of a monocular switch procedure as a method of rapidly introducing a visual perturbation. The results revealed minimal effect of the monocular switch on movement time and the endpoint error. Following this control experiment, prismatic displacement was introduced at the initiation of and during the movement. In the third experiment, the prism was presented prior to movement initiation, and then removed at the beginning of or during the movement. Movement trajectories were most influenced by the early presentation and removal of the prism, and female performance was significantly more affected by both perturbations than male performance. 相似文献
57.
We investigated how statistical information in the form of transitional probabilities (TPs) interacts with coarticulation, another sublexical cue to word boundaries, and examined the impact of signal quality on the weighting of these cues. In an artificial-language-learning setting, with phonetically intact speech, coarticulation overruled TPs, suggesting the predominance of subsegmental, low-level information. However, whereas the role of coarticulation in segmentation was highly modulated by signal quality, TPs were very resilient to noise. When coarticulation was rendered unreliable by strongly degrading the input with a 10-dB signal-to-noise ratio (SNR), only statistical information drove segmentation. In a more mildly degraded 22-dB SNR condition, in which some acoustic properties were still available, coarticulation was exploited, although with less reliability than in optimal conditions. These results can be interpreted according to a hierarchical approach (Mattys, White, & Melhorn, 2005) in which both the available segmentation cues and the listening conditions have an important role in speech segmentation. 相似文献
58.
The new independent Christian schools developed by parents and evangelical churches in the United Kingdom since the late 1960s remain controversial among both Christian and secular educators. In response to this controversy, the present study traced 106 men who had graduated from these schools between 1985 and 2003 and analysed their evaluation of the education they had received in these schools within four main themes: the quality of the education, the context of Christian and moral nurture, the quality of relationships (among the pupils, with the teachers and with the wider world) and preparation received for life after leaving school. Although there were some issues of criticism, the balance of opinion among the former pupils within all four areas was generally supportive of the new independent Christian schools, which were generally perceived as having prepared them well for life. 相似文献
59.
Huijbregts SC Séguin JR Zoccolillo M Boivin M Tremblay RE 《Journal of abnormal child psychology》2007,35(2):203-215
This study investigated associations between maternal prenatal smoking and physical aggression (PA), hyperactivity-impulsivity
(HI) and co-occurring PA and HI between ages 17 and 42 months in a population sample of children born in Québec (Canada) in
1997/1998 (N=1745). Trajectory model estimation showed three distinct developmental patterns for PA and four for HI. Multinomial regression
analyses showed that prenatal smoking significantly predicted children’s likelihood to follow different PA trajectories beyond
the effects of other perinatal factors, parental psychopathology, family functioning and parenting, and socio-economic factors.
However, prenatal smoking was not a significant predictor of HI in a model with the same control variables. Further multinomial
regression analyses showed that, together with gender, presence of siblings and maternal hostile reactive parenting, prenatal
smoking independently predicted co-occurring high PA and high HI compared to low levels of both behaviors, to high PA alone,
and to high HI alone. These results show that maternal prenatal smoking predicts multiple behavior regulation problems in
early childhood. 相似文献
60.
The aim of this study was to examine to what extent community characteristics counterbalance propensities towards homicide and robbery. Data were obtained for each of the 95 Italian provinces on homicide rate and robbery rate from 1992 to 1995. Multiple regressions were used to predict these homicide and robbery rates from a measure of civic engagement (Civicness) assessed during the same period, and from other socioeconomic variables: unemployment, family break up, and geographical characteristics. The predictors explained 77% of the variance among the Italian provinces for robbery, and 61% of the variance for homicide. The predictive patterns were somewhat different for homicide and robbery, but in each case civicness interacted with territorial variables. In the case of homicide, civicness had a preventive impact only in the southern provinces. For robbery, the protective impact was limited to provinces which were urbanized and had large metropolitan areas. 相似文献