Why are hyperactivity and academic achievement related?   总被引：1，自引：0，他引：1  

Saudino KJ  Plomin R 《Child development》2007,78(3):972-986

Although a negative association between hyperactivity and academic achievement is well documented, little is known about the genetic and/or environmental mechanisms responsible for the association. The present study explored links between parent and teacher ratings of hyperactive behavior problems and teacher-assessed achievement in a sample of 1,876 twin pairs (mean age 7.04 years). The results did not differ across rater, nor were there significant differences between males or females or for twins in the same or different classrooms. Hyperactivity was significantly correlated with achievement. Multivariate model-fitting analyses revealed significant genetic and nonshared environmental covariance between the two phenotypes. In addition, bivariate heritabilities were substantial, indicating that the phenotypic correlations between hyperactivity and achievement were largely mediated by genetic influences.  相似文献   

The Influence of Teacher Expectations about Twice-Exceptional Students on the Use of High Quality Gifted Curriculum: A Case Study Approach     

Tracy C. Missett  Amy Price Azano  Carolyn M. Callahan  Kimberly Landrum 《Exceptionality》2016,24(1):18-31

Twice-exceptional students show evidence of high academic performance or potential and also have a disability that impedes their ability to learn. Twice-exceptional students remain under-represented in gifted programs, and some researchers attribute such under-representation to the negative beliefs and low expectations about twice-exceptional students held by teachers. While researchers have begun to investigate the curricular models and instructional strategies that are effective for twice-exceptional students, little research addresses how teacher beliefs and expectations about student ability are reflected in the ways teachers implement such models and strategies for twice-exceptional students in gifted classrooms. Even less research addresses gifted students with emotional and behavioral disabilities. We used a case study of a third-grade teacher using a structured, model-based language arts curriculum to better understand how her expectations about a gifted student with an emotional disability influenced her instructional choices. Using observational and interview data, the case study approach allowed the researchers to personalize the experiences of this teacher and provided a context in which to examine the subtleties of teacher expectations when teaching a gifted student with an emotional disability. Implications for educational practice, particularly the need for comprehensive school-based support systems for students with emotional disabilities, are discussed.  相似文献   

Moving theory into practice: a reflection on teaching a large, introductory biology course for majors     

Tanner KD 《CBE life sciences education》2011,10(2):113-122

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The Structure and Substance of Teachers’ Opportunities to Learn about Teacher Evaluation Reform: Promise or Pitfall for Equity?     

Morgaen L. Donaldson  Sarah Woulfin  Kimberly LeChasseur  Casey D. Cobb 《Equity & Excellence in Education》2016,49(2):183-201

Despite growing momentum to overhaul teacher evaluation policies and practices, scant research examines how educators at the street level of such reform—principals and teachers—make sense of them, and almost no research examines the implications of current evaluation reforms for equity. This article provides findings based on a study of 14 districts implementing a new teacher evaluation policy in Connecticut. It focuses on how principals shaped teachers’ opportunities to learn about the new policy. We find that the majority of teachers’ opportunities to learn were formal and in whole group or one-on-one formats. We find important differences in the quantity and quality of learning opportunities at the district level, with districts serving greater shares of low-income students, students of color, and English language learners generally offering teachers fewer and lower quality opportunities to learn about the new reform than their counterparts. As such, this article builds on prior research illustrating the potential of new evaluation systems to exacerbate inequities and raises important cautions regarding the extent to which the unprecedented teacher evaluation reforms (currently underway) may exacerbate inequities among school districts.  相似文献   

Discriminating between reward-produced memories: Effects of differences in reward magnitude     

E. J. Capaldi  Suzan Alptekin  Kimberly Birmingham 《Learning & behavior》1997,25(2):171-176

The greater the dissimilarity between exteroceptive stimuli, the easier it is to discriminate between them. To determine whether a similar relationship holds for memories produced by reward events, rats in three runway investigations received trials in pairs, the number of food pellets (0.045 g) occurring on Trial 1 indicating whether reward or nonreward would occur on Trial 2. In each investigation, discriminative responding on Trial 2 was better the larger the difference in reward magnitude on Trial 1. This finding was obtained under a wide variety of conditions: for example, when the larger of two reward magnitudes on Trial 1 signaled nonreward on Trial 2 (Experiment 1, 10 vs. 2 pellets); when the smaller of two reward magnitudes on Trial 1 signaled nonreward on Trial 2 (Experiment 2, 10 vs. 2 pellets); and when the same magnitude of reward on Trial 1 signaled nonreward on Trial 2 (Experiment 3, either 5 pellets or 0 pellets). The findings obtained here indicate that the greater the dissimilarity between reward magnitudes, the greater the dissimilarity between the memories they produced and, thus, the easier it is to discriminate between them. It is suggested that the present results may provide a basis for understanding findings obtained in other instrumental learning investigations in which reward magnitude is varied.  相似文献   

Neighborhood matters: racial socialization of African American children     

Caughy MO  Nettles SM  O'Campo PJ  Lohrfink KF 《Child development》2006,77(5):1220-1236

Differences in racial socialization practices and their effects were examined in a sample of 241 African American 1st graders (average age 6.59 years) living in an urban area. Child outcomes included cognitive development, receptive language skills, and child problem behavior. The cultural environment of the home was associated with higher cognitive scores for boys living in high negative social climate and low social capital neighborhoods and for girls living in high social capital neighborhoods. The positive association of promotion of mistrust and child behavior problems was magnified in neighborhoods that had low levels of social capital. A high negative social climate in the neighborhood attenuated the positive association between preparation for bias/promotion of mistrust and externalizing problems.  相似文献   

Mediating cultural borders during science field trips     

Kimberly Lebak 《Cultural Studies of Science Education》2007,2(4):847-882

In this paper, I analyze teacher and student roles in the teaching and learning of science at an informal learning center, The Outdoor Classroom. As a white middle class informal learning science teacher, I examine my struggles to teach science to students across boundaries of race, class, gender, and experience with the outdoors during field trips. Through the field trip I did not have the time or face-to-face experience to make sense of the students’ culture, see their culture in terms of capital, and align my enactment to benefit their learning. Likewise, the students did not have the time or face-to-face experience with me in order to adapt their cultural capital and build the essential stocks of symbolic and social capital. This research demonstrates how the classroom teacher draws upon previous transactions and emotions to successfully engage her students in practices that promote the participation and learning of science. Through creating culturally adaptive ways of transacting, teachers can provide opportunities for their students to generate positive emotional energy and group solidarity in the learning of science at an informal science center.  相似文献   

Discrimination and Ethnic–Racial Identity: Understanding Direction of Effects Using Within- and Between-Person Analyses     

Katharine H. Zeiders  Sara D. Bayless  Chelsea L. Derlan  Adriana J. Umaña-Taylor  Kimberly A. Updegraff  Laudan B. Jahromi 《Child development》2019,90(3):e373-e385

Ethnic–racial identity (ERI) development and ethnic–racial discrimination are two salient experiences among adolescents in the United States. Despite growing awareness of the costs and benefits of these experiences individually, we know little about how they may influence one another. The current study examined competing hypotheses relating discrimination and components of ERI (i.e., exploration, resolution, affirmation) among a sample of Mexican-origin adolescent mothers (N = 181; M_age at Wave 1 = 16.83, SD = 1.01) across six waves of data. Findings revealed that within-person changes in discrimination predicted subsequent ERI resolution and affirmation; however, ERI did not predict subsequent discrimination. Between-person effects of discrimination on affirmation were significant. Our findings underscore the importance of discrimination experiences in shaping Mexican-origin adolescent mothers’ normative developmental competencies.  相似文献   

Roadmap to Reconciliation: Moving Communities into Unity,Wholeness, and Justice     

Kimberly P. Johnson 《Religious education (Chicago, Ill.)》2019,114(1):93-94

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Editorial     

Beverly J. Irby  Jennifer Boswell  Kimberly Kappler Hewitt  Shinhee Jeong  Elisabeth Pugliese 《Mentoring & Tutoring: Partnership in Learning》2019,27(1):1-4

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