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1.
In previous studies, social class differences in children's sociodramatic play were studied in socially homogeneous, segregated schools. However, social class differences in play behavior were attributed to the abilities or interests of the children rather than to the situation in which they were observed. In the present study, sociodramatic play was observed in middle and lower class children attending the same preschool classrooms. In accord with previous studies, middle class children engaged in a higher level of play than did lower class children. Analyses of individual play components indicated that although middle class children verbalized more frequently, the quality of the language used by the two groups did not differ. Age differences were also significant. With age, play roles became more socially coordinated, the duration of play episodes increased and language became more complex. But social class groups did not differ on these measures. The implications of these results for the developmental lag hypothesis, other explanations of social class differences and classroom strategies are discussed.  相似文献   

2.
This study examined the effects of social setting on the friendship formation of preschool-aged children differing in developmental status. Normally developing children (ND), children with communication disorders (CD), and children with developmental (cognitive) delays (DD) participated in a series of short-term play groups. Each of the 21 play groups consisted of children similar in developmental status (ND, CD, or DD play groups; specialized social settings) or contained primarily ND children with a small number of either CD or DD children (mainstreamed social settings). All children initially were unacquainted with one another and were carefully matched on a variety of family demographic and child characteristic measures. Results revealed that high proportions of unilateral friendships were established for all developmental status groups, but proportions were smaller when employing an index of reciprocal friendships. The proportions of unilateral and reciprocal friendships varied in accordance with a child's developmental status, but were not affected by social setting. In mainstreamed settings, the friendship choices of ND children were affected by peers' developmental status. Moreover, children with reciprocal friends were more socially interactive overall than children without reciprocal friends. The implications of these results for arranging social settings that support friendship formation for children with and without disabilities are discussed.  相似文献   

3.
Two experiments explored variation in the alerting process across age and warning interval as well as the effects of alertness on subsequent processing. Experiment 1 obtained alertness functions for a group of 5-year-olds, 8-year-olds, and adults. Results revealed strong age differences in speed of alerting and in maintenance of alertness over a 1-sec interval. Five-year-olds alerted more slowly than older groups and sustained optimal alertness less well. Both groups of children showed more variability in alerting functions compared with adults. Experiment 2 examined the degree to which age differences in processing speed were attributable to differential speed and maintenance of alerting. Masking functions obtained across variations in the alerting interval revealed that when level of alertness was optimal in both 5-year-olds and adults, minimal age differences in processing speed were observed. During short, nonoptimal alerting intervals, speed of processing in adults was faster than in 5-year-old children. The pattern of results across studies suggested that alertness can fluctuate over time in young children, that level of alertness affects subsequent perceptual processing speed, and that developmental variation in speed and maintenance of alertness can partly explain observed age differences in processing speed. The potential role of alertness in more complex cognitive tasks is discussed.  相似文献   

4.
From 1991 to 1994, a group of Romanian and American colleagues undertook an experimental and humanitarian effort to try to improve the quality of life, mental health, and developmental progress of young children in a Romanian orphanage. In the context of institutional care, we experimentally introduced stable adult–child relationships, small group size, and a protocol of enriched caregiving and educational activities. These procedures were adapted from an intervention in childcare centers in the United States that had been proven effective in reducing intellectual decline in at‐risk children. Developmental scores for orphanage children were derived from the Denver II (a revision of the Denver Developmental Screening Test; Frankenburg & Dodds, 1990), which was translated into Romanian and administered as a pre‐ and posttest to the experimental subjects and comparison groups in the same institution. Mixed models combining both within‐ and between‐subject heterogeneous variance‐covariance structures were utilized to analyze the impacts of time, intervention/control group assignment, child sex, child age, and interaction of Group × Time on the developmental scores. For the developmental outcome variables, the effects of group assignment (experimental vs. comparison) were highly significant. There also was a Group × Time interaction effect. We conclude that an educational intervention which includes the addition of resources and training can be initiated and sustained in an orphanage for young children as a way of improving institutional care. ©2005 Michigan Association for Infant Mental Health.  相似文献   

5.
This study systematically investigated the effects of different procedures on classroom behaviors ranging from teacher designated seating groups and seating groups based on sociometric data to peer encouragement and free time reinforcers. Subjects were first- and third-grade children in classrooms using a Follow Through program model. Data were taken on the attending behavior of the children in small groups arranged by the teacher. The level of appropriate attending behavior was low and did not increase when the groups were restructured based on sociometric data. The introduction of instructions to the peer groups to help the child with his or her work brought about a major increase in the third-grade subjects' appropriate behavior. Appropriate attending behavior for the first-grade children did not increase to the predetermined acceptable level until a free time period for each peer group was made contingent upon the appropriate behavior of the subject in each group. Frequencies of verbal interactions suggested peer attention has an effect on the appropriateness of peer interactions.  相似文献   

6.
To assess the effectiveness of vocational guidance procedures proposed for inclusion in a computer-based vocational exploration system, 139 eleventh-grade male subjects were randomly assigned to three experimental groups and a control group. One group was given a computer-generated accuracy of self-knowledge feedback, another group was taught an occupational classification scheme, a third group experienced both. Utilizing a method of explicit comparison between students' measured characteristics and the measured characteristics of occupational norm groups, the results showed students in the groups receiving feedback increased in the appropriateness of the occupational level of their first occupational choice. In addition, students in the combined treatment group increased in the appropriateness of the level of their total occupational preferences. A delayed posttest indicated that these increases persisted.  相似文献   

7.
Visual recognition memory was examined in a group of profoundly retarded young children whose visual-motor developmental level was estimated to be below one year. The children were tested for recognition of a previously shown face photo or a previously exposed color either immediately or following a short-term delay by observing the distribution of their visual fixation responses to novel stimuli when paired with previously seen targets. During a study or “familiarization” period the profoundly retarded children devoted voted approximately the same amount of attention to photos of faces as they did to colored, abstract patterns, and individual differences in overall looking time proved to be reliable. During the recognition testing phase the profoundly retarded children demonstrated immediate recognition memory for both faces and colors, preferring a novel to a previously exposed target, but responsiveness to novelty declined abruptly over a short-term delay, providing little evidence for delayed recognition.  相似文献   

8.
This research examined the effects of a self-instruction intervention on the relationship between cognitive level and conceptual tempo. Preoperational and concrete operational children received the Matching Familiar Figures Test prior to and after serving in either a no training control group, a content only control group, or a self-instruction group. Children in the content only control group received the same set of self-guiding strategy statements as those in the self-instruction group but without overt rehearsal of the statements. Cognitive level and conceptual tempo were strongly related; preoperational children tended to be classified as impulsive, concrete operational chidlren, as reflective. Although cognitive level predicted overall performance, with concrete operational children being more successful and more reflective than preoperational children, the influence of training was similar for both groups. On posttest, children in the self-instruction groups made more correct responses and were more reflective than children in the other two training groups.  相似文献   

9.
10.
The present study investigated the effects of review on young children's memory for prose. Prose passages were parsed into three levels of thematic importance. Five groups (128-year-old children each) participated in three experimental sessions, with each session separated by 1 week. During the first session all subjects listened to two passages. One week later, subjects in four of the groups received differing review experiences. During the third session, delayed retention was assessed. The data are interpreted to indicate that the repetition of the original learning experience was the most effective review; however, immediate reproduction following initial exposure also significantly attenuated forgetting. All groups favored the central passage ideas in their delayed recalls, regardless of their review treatment. The potential benefits of an immediate test as a review exercise was suggested.  相似文献   

11.
The homogeneous group has been the most common form of group therapy for chronically physically ill children and adolescents. The goals of these groups have included the provision of peer support, adaptation to the realities of physical illness, and acceptance of and cooperation with the medical management of the disease. The refinement of the theory of developmental ego psychology suggests that the heterogeneous group has potential for aiding the emotional maturation of the chronically physically ill. This paper presents examples of groups of latency-age children, early adolescents, and middle adolescents that included chronically physically ill with physically healthy peers. The groups were planned under the assumption that despite external differences, children and adolescents of a similar age identify with peers in terms of normal age-specific developmental needs and conflicts.  相似文献   

12.
8—12岁超常与常态儿童的检测时比较   总被引:2,自引:0,他引:2  
研究者采用两种视觉检测时任务,比较了8至12岁超常和常态儿童的检测时发展变化特点。结果发现:随着年龄的增长,超常组和常态组儿童的检测时都呈现出逐步减小的趋势,并且对于不同任务的检测时,两组儿童的发展速度不同,但均未表现出性别差异;在不同的年龄段和检测时任务中,超常组儿童的检测时均显著地快于常态组儿童。通过对两组儿童的检测时发展速率的比较还发现,儿童的检测时发展基本上不受学校知识或经验的影响。另外,两组儿童的检测时和智力测验分数之间都有中等程度的负相关。  相似文献   

13.
Time-sharing and dichotic listening techniques were used to examine cerebral lateralization for language function in 48 normal and 48 learning-disabled children. All subjects were matched according to age, sex, and handedness. An analysis of results indicated that both nornal and learning-disabled children demonstrated left hemisphere lateralization of language function on the time-sharing and dichotic listening tasks. However, no developmental trends were evident for either group. Differences observed in the performance of the normal and learning-disabled children may relate to how each group utilizes “verbal strategies” and processes simultaneous information in the left hemisphere. The results strongly question the notion that attributes learning disabilities to incomplete or delayed language lateralization and lend support to the notion that cerebral lateralization is not a developmental phenomena.  相似文献   

14.
We examined deaf and hearing children's progression of steps in theory of mind (ToM) development including their understanding of social pretending. Ninety‐three children (33 deaf; 60 hearing) aged 3–13 years were tested on a set of six closely matched ToM tasks. Results showed that deaf children were delayed substantially behind hearing children in understanding pretending, false belief (FB) and other ToM concepts, in line with their delayed uptake of social pretend (SP) play. By using a scaling methodology, we confirmed previous evidence of a consistent five‐step developmental progression for both groups. Moreover, by including social pretence understanding, both deaf and hearing children's ToM sequences were shown to extend reliably to six sequential developmental steps. Finally and focally, even though both groups' sequences were six steps long, the placement of pretence relative to other ToM milestones varied with hearing status. Deaf children understood social pretending at an earlier step in the ToM sequence than hearing children, albeit at a later chronological age. Theoretically, the findings are relevant to questions about how universal developmental progressions come together along with culturally distinctive inputs and biological factors (such as hearing loss) to set the pace for ToM development.  相似文献   

15.
BackgroundLiterature addressing the effects of television exposure on developmental skills of young children less than 36 months of age is scarce. This study explored how much time young children spend viewing television and investigated its effects on cognitive, language, and motor developmental skills.MethodsData were collected from the Pediatric Clinics at University Medical Center in Southern Taiwan. The participants comprised 75 children who were frequently exposed to television and 75 children who were not or infrequently exposed to television between 15 and 35 months old. The age and sex were matched in the two groups. The Bayley Scales of Infant Development-second edition and Peabody Developmental Motor Scales-second edition were used to identify developmental skills. Independent t-tests, χ2 tests, and logistic regression models were conducted.ResultsAmong 75 children who were frequently exposed to television, young children watched a daily average of 67.4 min of television before age 2, which was excessive according to the American Academy of Pediatrics. Viewing television increased the risk of delayed cognitive, language, and motor development in children who were frequently exposed to television. Cognitive, language, and motor delays in young children were significantly associated with how much time they spent viewing television. The type of care providers was critical in determining the television-viewing time of children.ConclusionWe recommend that pediatric practitioners explain the impacts of television exposure to parents and caregivers to ensure cognitive, language, and motor development in young children. Advocacy efforts must address the fact that allowing young children to spend excessive time viewing television can be developmentally detrimental.  相似文献   

16.
Developmental trajectories of children’s pretend play and social engagement, as well as parent sensitivity and stimulation, were examined in toddlers with an older sibling with autism spectrum disorder (ASD, high risk; HR) and toddlers with typically-developing older siblings (low risk; LR). Children (N = 168, 97 boys, 71 girls) were observed at 22, 28, and 34 months during free play with a parent and elicited pretend play with an examiner. At 28 and 34 months, children were asked to imagine the consequences of actions pantomimed by the examiner on a pretend transformation task. At 36 months children were assessed for ASD, yielding 3 groups for comparison: HR children with ASD, HR children without ASD (HR-noASD), and LR children. Children in all 3 groups showed developmental changes, engaging in more bouts of pretend play and obtaining higher scores on the elicited pretend and transformation tasks with age, but children with ASD lagged behind the other 2 groups on most measures. Children with ASD were also less engaged with their parents or the examiner during play interactions than either LR or HR-noASD children, with minimal developmental change evident. Parents, regardless of group, were highly engaged with their children, but parents of HR-noASD children received somewhat higher ratings on stimulation than parents of LR children. Most group differences were not accounted for by cognitive functioning. Instead, lower social engagement appears to be an important correlate of less advanced pretend skills, with implications for understanding the early development of children with ASD and for early intervention.  相似文献   

17.
The effects of childhood traumatic brain injury (TBI) on social problem-solving were examined in 35 children with severe TBI, 40 children with moderate TBI, and 46 children with orthopedic injuries (OI). The children were recruited prospectively following injuries that occurred between 6 and 12 years of age. They were followed longitudinally, and ranged from 9 to 18 years of age at the time of the current study, which occurred on average 4 years post injury. They were administered a semi-structured interview used in previous research on social problem-solving to assess the developmental level of their responses to hypothetical dilemmas involving social conflict. Children in the severe TBI group defined the social dilemmas and generated alternative strategies to solve those dilemmas at the same developmental level as did children in the OI group. However, they articulated lower-level strategies as the best way to solve the dilemmas and used lower-level reasoning to evaluate the effectiveness of the strategies. After controlling for group membership, race, socioeconomic status, IQ, and age, children's social problem-solving, and particularly the developmental level of their preferred strategies for resolving conflicts, predicted parents ratings of children's social skills, peer relationships, aggressive behavior, and academic performance. The findings indicate that children with severe TBI demonstrate selective, long-term deficits in their social problem-solving skills that may help to account for their poor social and academic outcomes.  相似文献   

18.
The effects of childhood traumatic brain injury (TBI) on social problem-solving were examined in 35 children with severe TBI, 40 children with moderate TBI, and 46 children with orthopedic injuries (OI). The children were recruited prospectively following injuries that occurred between 6 and 12 years of age. They were followed longitudinally, and ranged from 9 to 18 years of age at the time of the current study, which occurred on average 4 years post injury. They were administered a semi-structured interview used in previous research on social problem-solving to assess the developmental level of their responses to hypothetical dilemmas involving social conflict. Children in the severe TBI group defined the social dilemmas and generated alternative strategies to solve those dilemmas at the same developmental level as did children in the OI group. However, they articulated lower-level strategies as the best way to solve the dilemmas and used lower-level reasoning to evaluate the effectiveness of the strategies. After controlling for group membership, race, socioeconomic status, IQ, and age, children's social problem-solving, and particularly the developmental level of their preferred strategies for resolving conflicts, predicted parents ratings of children's social skills, peer relationships, aggressive behavior, and academic performance. The findings indicate that children with severe TBI demonstrate selective, long-term deficits in their social problem-solving skills that may help to account for their poor social and academic outcomes.  相似文献   

19.
Researchers have examined symbolic play style as a qualitative variable distinguishing two groups of children: patterners and dramatists. We have conceptualized style not as a typology of children but as reflecting dimensions of difference between children which are amenable to quantitative analysis. For the construct of style to be invoked, it must be measurable by many variables, it must be observable over time, and it ought to be demonstrably independent of general developmental level. Fifteen boys and 15 girls were each seen twice, once at 21 months of age and again 6 weeks later. The Session 2 pattern of correlations among hypothesized dramatist measures was not entirely consistent with that observed at Session 1; however, three measures, narrative vocalizations, spontaneous play, and elicited-appropriate play were primary dramatist measures at both sessions.  相似文献   

20.
The Daily Mile™ is a widely implemented school-based physical activity initiative. However, only two studies have explored the acute effects of participation in The Daily Mile on children’s cognitive functioning, reporting conflicting findings. Moreover, enjoyment of exercise is a determining factor in children’s motivation for, and adherence to, initiatives. However, factors affecting children’s enjoyment of The Daily Mile are unknown. Therefore, this study examined the acute effects of The Daily Mile on cognition and explored children’s enjoyment of participation in the initiative. Following familiarisation, 104 children (10.4 ± 0.7 years) completed a Daily Mile and resting control trial in a randomised, counterbalanced order. Prior to, immediately following and 45 min following The Daily Mile and resting, children completed the Stroop test (inhibitory control), Sternberg paradigm (visual working memory) and Flanker task (inhibitory control and cognitive flexibility). Additionally, 87 children took part in focus groups to explore factors affecting enjoyment. Cognitive data were analysed using two-way (trial*time) and three-way (trial*time*sex; trial*time*fitness) repeated measures analysis of variance (ANOVA). Focus group data were analysed using qualitative content analysis. There were no statistically significant effects of The Daily Mile on cognition, compared to rest (all p > 0.05). However, accuracy on the one-item level of Sternberg paradigm (p = 0.073, ηp2 = 0.028) and complex level of the Stroop test (p = 0.057; ηp2 = 0.031) tended to improve immediately following The Daily Mile, compared to resting; though this did not reach statistical significance. Children enjoyed participating in The Daily Mile, particularly due to its outdoor location, social context, and self-paced nature. However, some children found The Daily Mile boring due to its repetitive nature. Findings suggest that The Daily Mile does not significantly influence children’s immediate or delayed (45 min) cognition. However, there was a tendency for improved accuracy in visual working memory and inhibitory control immediately following The Daily Mile. Moreover, the findings demonstrate that The Daily Mile promotes enjoyment, particularly through social relatedness and autonomy. However, future research could consider whether adding variety into the initiative may help to sustain engagement in the children experiencing boredom.  相似文献   

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