Child emotional security and interparental conflict

Guided by the emotional security hypothesis developed by Davies & Cummings (1994), studies were conducted to test a conceptual refinement of children's adjustment to parental conflict in relation to hypotheses of other prominent theories. Study 1 examined whether the pattern of child responses to simulations of adult conflict tactics and topics was consistent with the emotional security hypothesis and social learning theory in a sample of 327 Welsh children. Supporting the emotional security hypothesis, child reports of fear, avoidance, and involvement were especially prominent responses to destructive conflict. Study 2 examined the relative roles of child emotional insecurity and social-cognitive appraisals in accounting for associations between parental conflict and child psychological symptoms in a sample of 285 Welsh children and parents. Findings indicated that child emotional insecurity was a robust intervening process in the prospective links between parental conflict and child maladjustment even when intervening processes proposed in the social-cognitive models were included in the analyses. Studies 3 and 4 explored pathways among parental conflict, child emotional insecurity, and psychological adjustment in the broader family context with a sample of 174 children and mothers. Supporting the emotional security hypothesis, Study 3 findings indicated that child insecurity continued to mediate the link between parental conflict and child maladjustment even after specifying the effects of other parenting processes. Parenting difficulties accompanying interparental conflict were related to child maladjustment through their association with insecure parent-child attachment. In support of the emotional security hypothesis, Study 4 findings indicated that family instability, parenting difficulties, and parent-child attachment insecurity potentiated mediational pathways among parental conflict, child insecurity, and maladjustment. Family cohesiveness, interparental satisfaction, and interparental expressiveness appeared to be protective factors in these mediational paths. No support was found for the social learning theory prediction that parent-child warmth would amplify associations between parental conflict and child disruptive behaviors.     

Changes over time in kindergarten holding out: Parent and school contexts

This study examined the prevalence of holding age-eligible children out of kindergarten in a single Northern California county, and the changes in this phenomenon over time. The sample included 861 boys and 843 girls in 1988 to 1989 and 975 boys and 894 girls in 1991 to 1992, from 30 schools. In 1988, approximately 19.3% of kindergarten boys and 9.1% of kindergarten girls throughout the county were older than their classmates as a result of having been held out of school. In 1991, the corresponding figures were 11.4% and 3.7% for boys and girls respectively. Parental soeioeconomic status (SES) was associated with holding out boys, but not girls, in both 1988 and 1991. Specifically, schools with higher SES parents overall had a higher percentage of boys held out. A significantly greater percentage of parents in 1988 were concerned about the appropriateness of the kindergarten classroom for their child than parents in 1991. This study was unable to identify relationships between holding-out and teacher reports of change in kindergarten expectations, practices, and enrollment policies.     

Impact of hostility and withdrawal in interparental conflict on parental emotional unavailability and children's adjustment difficulties

This multimethod, prospective study examined the nature of pathways between interparental hostility and withdrawal, parental emotional unavailability, and subsequent changes in children's internalizing and externalizing behaviors, and school adjustment difficulties over a 3-year period in a sample of 210 mothers, fathers, and 6-year-old children. The results of autoregressive structural equation models indicated that interparental withdrawal had a detrimental impact on all areas of children's adjustment, whereas interparental hostility had an indirect effect on subsequent changes in child adjustment. An intermediary role of parental emotional unavailability in links between interparental withdrawal and hostility and child outcomes was indicated, with specific, differential effects observed for fathers and mothers.     

Understanding heterogeneity in pathways between interparental conflict and children's involvement: The moderating role of affect-biased attention

The study examined the moderating role of children's affect-biased attention to angry, fearful, and sad adult faces in the link between interparental conflict and children's distinct forms of involvement. Participants included 243 preschool children (M_age = 4.60 years, 56% female) and their parents from racially (48% African American, 43% White) and socioeconomically (median annual household income = $36,000) diverse backgrounds. Data collection took place in the Northeastern United States (2010–2014). Utilizing a multi-method, multi-informant, longitudinal design, attention away from anger selectively amplified the link between interparental conflict and children's subsequent coercive involvement (β = −.15). Greater attention to fear potentiated the pathway between interparental conflict and children's later cautious (β = .14) and caregiving involvement (β = .15). Findings are interpreted in the context of environmental sensitivity models.     

A prospective investigation of appraisals as mediators of the link between interparental conflict and child adjustment

This longitudinal study tested the role of children's appraisals of threat and self-blame as mediators of the association between interparental conflict and child adjustment in a sample of 298 Welsh children ages 11 to 12 years. Exposure to higher levels of interparental conflict at Time 1 predicted greater perceived threat and self-blame at Time 2, after accounting for the effects of Time 1 adjustment and appraisals on later appraisals. Perceived threat in turn was associated with increased internalizing problems at Tune 2, and self-blame was associated with higher externalizing problems. The pattern of results was largely consistent for child and parent reports of conflict and for boys and girls, though some gender differences were found in associations between appraisals and adjustment.     

Toward greater specificity in identifying associations among interparental aggression, child emotional reactivity to conflict, and child problems

This study examined specific forms of emotional reactivity to conflict and temperamental emotionality as explanatory mechanisms in pathways among interparental aggression and child psychological problems. Participants of the multimethod, longitudinal study included 201 two‐year‐old children and their mothers who had experienced elevated violence in the home. Consistent with emotional security theory, autoregressive structural equation model analyses indicated that children’s fearful reactivity to conflict was the only consistent mediator in the associations among interparental aggression and their internalizing and externalizing symptoms 1 year later. Pathways remained significant across maternal and observer ratings of children’s symptoms and with the inclusion of other predictors and mediators, including children’s sad and angry forms of reactivity to conflict, temperamental emotionality, gender, and socioeconomic status.     

The development of science process skills in authentic contexts

Instructional strategies and curriculum sequences aimed at teaching process skills have received considerable attention in science education. On the other hand, the teaching of domain-independent, context-free skills has been subject to criticism on the ground that important aspects of cognitive activities are functions of meaningful contexts. The intent of this study was to examine the development of integrated process skills in the context of open-inquiry laboratory sessions. The data-collection approach was qualitative and included videotapes of laboratory sessions, laboratory reports of students, and the reflective journals kept by the two teachers involved in the study. Forty-eight students from the Grade 11 introductory physics course, 29 students from the Grade 12 physics course, and 60 students from the Grade 8 general science course from an all-boys private school participated in the study. An interpretive research methodology was adopted for construction of meaning from the data. Students worked in collaborative groups during all of the open-inquiry laboratory sessions. Findings from the study indicate that students develop higher-order process skills through nontraditional laboratory experiences that provided the students with freedom to perform experiments of personal relevance in authentic contexts. Students learned to (a) identify and define pertinent variables, (b) interpret, transform, and analyze data, (c) plan and design an experiment, and (d) formulate hypotheses. Findings of this study suggest that process skills need not be taught separately. Integrated process skills develop gradually and reach a high level of sophistication when experiments are performed in meaningful context.     

Teacher professional development programmes in MST for developing contexts

ABSTRACT

Since 1994, the democratic South African government has introduced change in all spheres of South African life in a bid to address some challenges such as the redundant, racialised curriculum, the poor results achieved by learners in Grade 12, and the fact that few black matriculants were entering science based careers. A key feature of these poor results was the large group of teachers who were inadequately ‘trained’ during the apartheid era: trained, that is, to teach for subservience and not for critical thinking. Current actions to address this crisis are being undertaken in a collaborative relationship between the Department of Education and Higher Education Institutions. Current initiatives in the professional development of Mathematics, Science and Technology teachers at a South African university are explored. The purpose of this article is to explore the challenges of designing an MST professional development programme in a developing context. The discussion is elaborated with reference to MST programmes run by one particular university. The rationale, foundational principles, model of delivery, programme structure and assessment for the specialisations within the teacher professional development programmes at the university are described. The discussion foregrounds the role of teachers as professionals, the role of context and of content knowledge, as well as the role of pedagogic content knowledge in the professional development of teachers.     

Infant-mother attachment: factors related to its development and changes over time

As part of a large longitudinal study, assessments of attachment relationships in high-risk mother-infant pairs were conducted at 12 and 18 months. With data collected prenatally and during the infant's first 2 years of life, this study attempted to discriminate among 3 major attachment classifications and to account for qualitative changes in attachment relationships. The data included maternal and infant characteristics, mother-infant interactions, life-stress events, and family living arrangements. Several patterns seemed to emerge. Mothers of securely attached infants were consistently more cooperative and sensitive with their infants as observed in a feeding and play situation than mothers of anxiously attached infants. Anxious/resistant infants tended to lag behind their counterparts developmentally and were less likely to solicit responsive caretaking. Anxious/avoidant infants, although robust, tended to have mothers who had negative feelings about motherhood, were tense and irritable, and treated their infants in a perfunctory manner. Male babies were somewhat more vulnerable to qualitative differences in caretaking, while, for girls, maternal personality showed a stronger relationship to security of attachment. Changes from secure to anxious attachments were characterized by initially adequate caretaking skills but prolonged interaction with an aggressive and suspicious mother. Changes toward secure attachments tend to reflect growth and increasing competence among young mothers.     

创设教学情景促进思维发展

以布鲁纳的“发现学习”的教学思想和皮亚杰的“发生认识论”为理论依据，强调了学生在教学过程中的主体地位．通过创设具有创造性的教学情景，即建立以多种教学方法和教学手段相结合的物理教学情景，激发学生的学习兴趣，引导学生自觉、主动地学习，通过积极思维，亲自探索和主动研究获得知识，进而培养学生的创新精神和创造性思维的能力．     

Children's patterns of preserving emotional security in the interparental subsystem

Guided by the emotional security hypothesis, this research identified (1) individual differences in children's strategies for preserving their emotional security in the interparental relationship, and (2) the psychosocial and family correlates of these individual differences. Study 1 assessed reactivity to parental conflict simulations among 56 school-age children, whereas Study 2 solicited child and mother reports of 170 young adolescents' reactions to actual marital conflict. Cluster analyses in both studies indicated that children fit three profiles: (1) secure children, who showed well-regulated concern and positive representations of interparental relationships; (2) insecure-preoccupied children, who evidenced heightened distress, involvement or avoidance, and negative representations of interparental relationships; and (3) insecure-dismissing children, who displayed overt signs of elevated distress, avoidance, and involvement and low levels of subjective distress, avoidance and intervention impulses, and negative internal representations. Results in both studies indicated that preoccupied and dismissing children experienced more interparental conflict than did secure children, and preoccupied children evidenced the highest levels of internalizing symptoms. Study 2 results indicated that dismissing children had the highest levels of externalizing symptoms and preoccupied and dismissing children reported more coping, family, and personality difficulties than did secure children.