Developmental Trajectories of Girls’ and Boys’ Delinquency and Associated Problems

Developmental trajectories in delinquency through adolescence were studied along with family and peer relationship problems. Drawing from eight waves of data over seven years, we conducted trajectory analyses with a sample of 746 students (402 girls; 344 boys). Analyzing girls and boys together, a five-class model emerged: 60% of the adolescents rarely reported delinquency; 27.7% reported low initial levels with moderate levels of delinquency over time; 6% in the late onset group reported initially low and rising levels of delinquency; 5% in the early onset group reported moderate initial levels which increased and then decreased in later adolescence. A small group of only boys (1.3%) labeled chronic reported high initial levels of delinquency that increased over time. Group comparisons revealed problems in internalizing, parent and peer relationship problems. The findings provide direction for early identification and interventions to curtail the development of delinquency.     

Gibbs Samplers for Logistic Item Response Models via the Pólya–Gamma Distribution: A Computationally Efficient Data-Augmentation Strategy

Psychometrika - Fully Bayesian estimation of item response theory models with logistic link functions suffers from low computational efficiency due to posterior density functions that do not have...     

母亲社会情绪行为的相关因素研究

本研究考察了婴儿情绪特征、母亲受教育程度和母亲社会情绪行为的关系。结果表明：（1）情绪特征不同婴儿的在积极社会情绪行为上无显著差异,而在消极情绪行为上,负性情绪组婴儿的显著地少于负性情绪组婴儿的母亲;（2）受教育程度不同的在积极情绪行为上无显著差异,而在消极情绪行为上,受教育程度高的母亲显著地少于受教育程度低的母亲;（3）综合考察婴儿情绪特征和母亲受教育程度两方面因素,受教育程度在大专以下、负性情绪较多婴儿的母亲在积极情绪行为上与其他组的母亲无任何差异,而其消极情绪行为显著地多于其他组的母亲。     

先前知识、超文本层次深度和类型对低结构化信息搜索的影响

探讨先前知识、超文本层次深度和类型对低结构化中文信息搜索的影响。采用2(先前知识)×8(文本组织形式)的被试间设计,以平均搜索时间和迷路指数为因变量。结果发现:(1)先前知识对线性文本和超文本(尤其是层次型超文本)的搜索均有利;(2)随着层次深度的增加,对超文本的搜索时间显著增加,迷路指数也呈增加的趋势;(3)搜索线性文本的迷路指数显著低于超文本;(4)不同类型超文本的搜索绩效基本无显著差异。因此,先前知识、层次深度对超文本信息搜索的影响比超文本类型和信息的结构化水平更重要。     

大学生情绪复杂性对情绪信息注意偏向的影响

为考察大学生情绪复杂性对情绪信息注意偏向的影响,通过情绪体验范围和区分性量表(RDEES)筛选出高低情绪复杂性被试各30名,采用2(情绪复杂性:高、低)×3(效价:正性、中性和负性)×4(呈现条件:0/300/600/900ms)的三因素混合设计要求被试完成视觉搜索任务。结果显示:(1)高、低情绪复杂性组在情绪条件(正性、负性)下的正确率显著低于中性图片、反应时显著高于中性图片,均表现出对情绪图片的注意偏向;(2)高分组在正性图片0ms呈现的条件下的正确率显著高于低分组,在负性图片300ms和900ms呈现和正性图片900ms呈现条件下的反应时显著低于低分组。     

The Relationship Between Posttraumatic Stress Symptoms and Suicide Ideation Among Child Survivors Following the Wenchuan Earthquake

The association between posttraumatic stress disorder (PTSD) symptoms and suicide ideation was examined in a sample of 2,298 child survivors of the Wenchuan earthquake. Results indicated that intrusion, avoidance, hyperarousal symptom clusters, and PTSD total score were significantly associated with suicide ideation. Except for intrusion, other measures of PTSD remained as statistically significant correlates of suicide ideation even after controlling for age, gender, direct exposure, indirect exposure, and depression. Furthermore, results showed that PTSD symptoms had an indirect influence on suicide ideation that was mediated by depression. The findings suggest that avoidance and hyperarousal symptom clusters of PTSD may be two important indicators of suicide ideation among child survivors of the Wenchuan earthquake. Implications of the results for intervention and prevention of suicide behavior are discussed.