基于混合模型（Mixed-CDMs）视角的CD-CAT及其应用研究

传统CD-CAT通常选择一个认知诊断模型（cognitive diagnosis model, CDM）标定题库参数,但在实际应用中一个CDM很难完全拟合题库中所有的题目。G-DINA模型是一般化的饱和模型,可以通过Wald统计量检验在题目水平上,比较简约模型（DINA、DINO、ACDM、LLM和RRUM）是否能够代替饱和模型（G-DINA）,并为每个题目选择一个相对最优的CDM,从而充分发挥各个CDM的优势,从而在一个题库中有的题目采用简约CDM,而有的题目采用饱和CDM,本文把这种思路称为混合模型（Mixed-CDMs）思路。基于此,本文探讨了基于混合模型的CD-CAT,并通过两个模拟研究及其应用研究验证了该方法的效果。研究结果表明基于混合模型建立的CD-CAT具有理想的效果,从而为CD-CAT在实际使用中提供了新思路和新方法。     

Intervention to Strengthen Emotional Self-Regulation in Children with Emerging Mental Health Problems: Proximal Impact on School Behavior

A model for teaching children skills to strengthen emotional self-regulation is introduced, informed by the developmental concept of scaffolding. Adult modeling/instruction, role-play and in vivo coaching are tailored to children’s level of understanding and skill to promote use of skills in reallife contexts. Two-hundred twenty-six kindergarten—3rd grade children identified with elevated behavioral and social classroom problems from a population-based screening participated in a waitlisted randomized trial of the Rochester Resilience Project derived from this model. In 14 lessons with school-based mentors, children were taught a hierarchical set of skills: monitoring of emotions; selfcontrol/ reducing escalation of emotions; and maintaining control and regaining equilibrium. Mentors provided classroom reinforcement of skill use. Multi-level modeling accounting for the nesting of children in schools and classrooms showed the following effects at post-intervention: reduced problems rated by teachers in behavior control, peer social skills, shy-withdrawn and off-task behaviors (ES 0.31–0.47). Peer social skills improved for girls but not for boys. Children receiving the intervention had a 46% mean decrease in disciplinary referrals and a 43% decrease in suspensions during the 4-month intervention period. Limitations and future directions to promote skill transfer are discussed.     

Interactive effects of subjective memory complaints and hypertension on learning and memory performance in the elderly

This study evaluated whether the relation between subjective memory complaints and cognitive performance is influenced by the presence of hypertension in the elderly. One hundred and five healthy older adults, 70–89 years of age, with and without hypertension treatment or diagnosis, completed a scale of subjective memory complaints. Participants were divided into those with mild memory concerns and those with minimal or no complaints. All participants completed a battery of neuropsychological tests including measures of verbal and nonverbal memory. After controlling for differences in age, gender, education, and overall intellectual ability, there were significant main effects for memory concerns and significant interactions for memory complaints and hypertension on several measures of memory performance. There were no main effects for hypertension on memory performance. Simple effects analyses of the interactions showed that the hypertensive complainers demonstrated poorer performance on measures of long-term memory and greater reliance on short-term recall than the hypertensive non-complainers. There were no differences in memory performance for the non-hypertensive groups. Among healthy elderly community-dwelling adults, those with mild subjective memory complaints in the context of hypertension demonstrated greater objective cognitive difficulties than those without hypertension as well as a greater reliance on a less efficient learning strategy. These findings suggest that memory concerns in the presence of hypertension may be important when evaluating treatment efficacy in these individuals and for identifying differences in cognitive aging.     

Children's judgements and emotions about social exclusion based on weight

This study examined children's judgements and emotions associated with weight‐based social exclusion using an ethnically diverse sample of one hundred and seventeen 9‐ and 13‐year‐old children. Children were interviewed about three scenarios depicting weight‐based exclusion in athletic, academic, and social contexts. Children's judgements of exclusion, emotions attributed to the excluder and excluded targets, and justifications for judgements and emotions were examined. Overall, children judged weight‐based exclusion to be wrong for moral reasons. However, they viewed weight‐based exclusion in athletic contexts as less wrong compared with academic contexts, and they used more social‐conventional reasoning to justify judgements and emotions attributed to excluders in athletic contexts compared with academic and social contexts. Children also expected excluded targets to feel negative emotions, whereas a range of positive and negative emotions was attributed to excluders. In addition, older children were more accepting of weight‐based exclusion in athletic contexts than in academic and social contexts. We discuss the results in relation to the development of children's understanding of, and emotions associated with, exclusion based on weight.