Infant Care: Evaluation of Pre-Care Differences Hypotheses

189 infants/toddlers and their parents were visited in their homes 2 weeks before starting an out-of-home care arrangement and followed every two weeks until 6 months after care had begun (or its equivalent for parent care groups). At the beginning of the study infant/toddlers ranged in age from 2 to 30 months. In this report, hypotheses examining the role of pre-care family characteristics in determining child care use and later child adjustment were evaluated. Discriminant function analyses reliably separated care type and age of entry groups using pre-care family and infant characteristics as predictors. There were no significant differences in child behavior problems (externalizing and internalizing behavior) as a function of care arrangement type experienced. Mother's pre-care parent stress (PSI parent domain subscale: attachment to child) predicted anxious/withdrawn behavior 6 months later. Aggressive/destructive behavior was related independently to mother's health status and parent stress (PSI parent domain subscale: sense of competence) as measured before out-of- home care was begun. Difficult temperament infants had more behavior problems of all types.     

Infant Neurosensory Development: Considerations for Infant Child Care

Infant brain development is a dynamic process dependent upon endogenous and exogenous stimulation and a supportive environment. A critical period of brain and neurosensory development occurs during the third trimester and into the “fourth” trimester (first three months of life). Disruption, damage, or deprivation in the infant’s social and physical environment can create permanent deficits in the developing neurosensory systems. Implications for infant child care environments are discussed, and a review of quality and standards in infant child care environments leads to a call for improvements to optimize child development.     

Infant Differences in Rate of Visual Encoding

To clarify the basis for infant differences in rate of visual encoding, the eye movements of a sample of 9 12-week-old infants were recorded throughout an encoding experiment. Results showed that the more slowly encoding infants scanned less extensively over the stimulus, often spent extended intervals in the continuous inspection of one part of the figure, and frequently engaged in prolonged fixations. A second experiment provided comparable scanning data from a sample of 9 2-week-old infants. There were significant age differences in the manner of visual scanning, and the scanning style of the more slowly encoding 12-week-old infants proved to be more like that of the younger infants. Possible explanations for both the between-age and within-age differences are proposed.     

表现性评价及其在幼儿评价中的应用

表现性评价是指对学生在完成真实任务过程中所表现出来的智力和非智力因素进行评价的方法。它尊重学生发展的不平衡性和差异性，关注学生在评价中的体验，而不是给学生分等级。它作为笔试测验的补充，在对学生学科成就的评价中越来越受重视。同时，表现性评价由于其特点，在幼儿评价中也广泛应用。     

早产儿静脉留置针输液时的效果评价

为探讨早产儿输液时应用静脉留置针的效果,我院选择2012年3月至2013年12月间需要使用静脉留置针的早产儿128例作为研究对象,进行临床输液资料的效果评价。结果发现,两组早产儿在一次性穿刺成功率、患儿家长的满意度、局部的不良反应渗漏肿胀以及并发静脉炎等情况进行比较,观察组明显好于对照组,差异有统计学意义(P<0.05)。由此得出结论,在早产儿抢救护理中,软管静脉留置针具有明显的临床应用价值和推广意义。     

Bayesian Evaluation of Inequality-Constrained Hypotheses in SEM Models Using Mplus

Researchers in the behavioral and social sciences often have expectations that can be expressed in the form of inequality constraints among the parameters of a structural equation model resulting in an informative hypothesis. The questions they would like an answer to are “Is the hypothesis Correct” or “Is the hypothesis incorrect?” We demonstrate a Bayesian approach to compare an inequality-constrained hypothesis with its complement in an SEM framework. The method is introduced and its utility is illustrated by means of an example. Furthermore, the influence of the specification of the prior distribution is examined. Finally, it is shown how the approach proposed can be implemented using Mplus.     

Individual Differences in Infant Visual Attention: Recognition of Degraded Visual Forms by Four-Month-Olds

In 5 experiments, 4-month-old infants were tested for their ability to recognize degraded visual targets as a function of individual differences in fixation duration. Targets were degraded by removing 10% of the total contour either from vertices (vertex-absent) or from midsegments (vertex-present). Both qualitative and quantitative differences were found in long and short lookers' ability to recognize the degraded forms. Short-looking infants were able to recognize degraded forms in both vertex-absent and vertex-present conditions, but the vertex-absent discrimination was more difficult. Long-looking infants required longer familiarization times before showing evidence of recognition in the vertex-present condition, and were unable to recognize targets in which contour was removed at vertices. The findings are discussed within the framework of the persistence of early visual processing strategies, and reliance of long-looking infants on particular local elements in visual analysis.     

以儿童之家为依托的社区婴幼儿照护服务体系构建

社区儿童之家在实践中的蓬勃发展为婴幼儿照护服务提供了可能的空间。与其他年龄段的教育服务比较,社区儿童之家婴幼儿照护服务目前尚处于较空白状态,面临供需矛盾突出、定位模糊、硬件与软件建设失衡等诸多挑战。作为政府主导的社区公共服务平台,社区儿童之家在提供婴幼儿照护服务时,应遵循利国利家利童的价值追求：以提高我国儿童的国民素养为本,以提升家庭育儿生活品质为要,以关注婴幼儿精神生活为主。应兼顾作为直接的专业普惠性婴幼儿照护者,作为家庭、社区、机构育儿共享资源平台的组建者,作为新时代亲职教育的重要参与者之多种角色;以打造支持婴幼儿成长的公共友好活动空间,搭建“家庭—社区—机构(学校)”三位一体的公共照护平台,面向婴幼儿照护者普及科学养育理念、提升育儿技能作为建设任务;以开展覆盖日常开放与主题活动并举的亲子共育活动、普遍性与个性化相结合的家庭教育讲座与咨询活动,面向特殊需要婴幼儿及家庭提供社区帮扶与专业支持作为服务内容。     

The Parent-Caregiver Relationship Scale: Rounding Out the Relationship System in Infant Child Care

The Parent-Caregiver Relationship Scale (PCRS) was developed and field tested as a measure of the perceived quality of the relationship between the parent and the child care provider (“caregiver”) of an infant or toddler. PCRS items were based on review of the parent-caregiver relations literature and interviews with parents and caregivers. The parent and caregiver forms of the scale were administered to 217 parents and caregivers in child care centers and family child care homes. Analysis of the scale and its psychometric properties resulted in potentially useful subscales with adequate reliability. The PCRS showed predicted correlations with other child care context variables, providing preliminary support for its validity. The PCRS shows promise as a relationship-level measure for studies of infants, parents, and caregivers in the context of full-time child care.     

Quality of Center Child Care and Infant Cognitive and Language Development

The relations between quality of center-based child care and infant cognitive and language development were examined in a sample of 79 African-American 12-month-old infants. Both structural and process measures of quality of child care were collected through interviews with the center director and observation of the infant classroom. Results indicated that quality of infant care positively correlated with scores on standardized assessments of cognitive development ( Bayley Scales of Infant Development ), language development (Sequenced Inventory of Communication Development), and communication skills (Communication and Symbolic Behavior Scales). In addition, quality of care in child care centers and at home was positively related. Analyses that adjusted for this association between quality of care at home and in child care suggested that the process measure of quality of child care independently related to the infant's cognitive development, and one structural measure, the infant-adult ratio, independently related to the infant's overall communication skills. Neither child nor family factors was found to moderate the association between child care quality and infant development. These findings, in conjunction with the growing child care literature, suggest that researchers and policymakers should focus on how quality of child care can be improved to enhance, not impair, infant development.     

The Effects of Infant Child Care on Infant-Mother Attachment Security: Results of the NICHD Study of Early Child Care NICHD Early Child Care Research Network

The aims of this investigation were to determine whether Strange Situation attachment classifications were equally valid for infants with and without extensive child-care experience in the first year of life and whether early Child Care experience, alone or in combination with mother/child factors, was associated with attachment security, and specifically with insecure-avoidant attachment. Participants were 1,153 infants and their mothers at the 10 sites of the NICHD Study of Early Child Care. Mother were interviewed, given questionnairies, and observed in play and in the home when their infants were from 1 to 15 months of age; infants were observed in child care at 6 and 15 months and in the Strange Situation at 15 months. Infants with extensive Child Care experience did not differ from infants without child-care in the distress they exhibited during separations from mother in the Strange situation or in the confidence with which trained coders assigned them attachment classifications. There were no significant main effects of Child Care experience (quality, amount, age of entry, stability, or type of care) on attachment security or avoidance. There were, however, significant man effects of maternal sensitivity and responsiveness. Significant interaction effects revealed that infants were less likely to be secure when low maternal sensitivity/responsiveness was combined with poor quality child care, more than minimal amounts of child care, or more than one care arrangement. In addition, boys experiencing many hours in care and girls in minimal amounts of care were somewhat less likely to be securely attachment.     

Developmental Differences in Infant Attention to the Spectral Properties of Infant-directed Speech

Across several independent studies, infants from a few days to 9 months of age have shown preferences for infant-directed (ID) over adult-directed (AD) speech. Moreover, 4-month-olds have been shown to prefer sine-wave analogs of the fundamental frequency of ID speech, suggesting that exaggerated pitch contours are prepotent stimuli for infants. The possibility of similar preferences by 1-month-olds was examined in a series of experiments, using a fixation-based preference procedure. Results from the first 2 experiments showed that 1-month-olds did not prefer the lower-frequency pitch characteristics of ID speech, even though 1-month-olds were able to discriminate low-pass filtered ID and AD speech. Since low-pass filtering may have distorted the fundamental frequency characteristics of ID speech, 1-month-olds were also tested with sine-wave analogs of the fundamental frequencies of the ID utterances. Infants in this third experiment also showed no preference for ID pitch contours. In the fourth experiment, 1-month-olds preferred a natural recording of ID speech over a version which preserved only its lower frequency prosodic features. From these results, it is argued that, although young infants are similar to older infants in their attraction to ID speech, their preferences depend on a wider range of acoustic features (e.g., spectral structure). It is suggested that exaggerated pitch contours which characterize ID speech may become salient communicative signals for infants through language-rich, interactive experiences with caretakers and increased perceptual acuity over the first months after birth.     

Individual Differences in Infant Visual Attention: Four-Month-Olds' Discrimination and Generalization of Global and Local Stimulus Properties

Cognitive performance and development is negatively correlated with fixation duration patterns during infancy, and evidence suggests that long-looking infants may process visual information more slowly than short-looking infants. 3 experiments described here tested the possibility that these differences may be due to differential sensitivity to global and local visual information. Infants were administered discrimination and generalization tasks involving global and local information at varying levels of familiarization time. Results indicated that 4-month-olds process visual information in a global-to-local sequence. Both long- and short-looking infants were sensitive to both types of information, although long lookers required additional familiarization time to match the performance of short lookers. Finally, apparent "generalization" of global information at brief familiarization levels was traced to insensitivity to local stimulus properties. The results do not support the hypothesis that long- and short-looking infants are differentially sensitive to global versus local visual information at 4 months of age.     

Individual Differences in Infant Visual Attention: Are Short Lookers Faster Processors or Feature Processors?

Individual differences in the duration of infants' visual fixations are reliable and stable and have been linked to differential cognitive performance; short-looking infants typically perform better than long-looking infants. 4 experiments tested the possibility of whether short lookers' superiority on perceptual-cognitive tasks is attributable to attention to the featural details of visual stimuli, or simply to differences in the speed or efficiency of visual processing. To do this, the performance of long- and short-looking 4-month-olds was examined on separate discrimination tasks that could be solved only by processing either featural or global information. The global task was easier than the featural task, but as the amount of time allotted for infants to solve either type of task was decreased, short lookers' performance was superior to that of long lookers. These results thus lend support to a speed or efficiency of stimulus processing interpretation of infant fixation duration.