An adoption study of the etiology of teacher and parent reports of externalizing behavior problems in middle childhood     

Deater-Deckard K  Plomin R 《Child development》1999,70(1):144-154

Twin studies of externalizing behavior problems in middle childhood and early adolescence suggest that there is moderate-to-substantial genetic variance and modest-to-moderate shared environmental variance in these behaviors. The present study is novel in three ways: it is a sibling adoption study, it employs both teacher and parent ratings of children's behaviors averaged over five assessments, and it explores aggression and delinquency separately. The sample included 78 adoptive sibling pairs and 94 biologically related sibling pairs in the Colorado Adoption Project. Parents and teachers completed ratings of the children's externalizing behavior problems at ages 7, 9, 10, 11, and 12 years. Boys and adopted children were rated as being somewhat higher in externalizing behavior problems. Sex differences in delinquency were more pronounced in adoptive than in nonadoptive families. Teachers' ratings showed evidence for moderate heritability and no shared environment for aggression and showed modest shared environment for delinquency. Parents' ratings showed evidence for moderate amounts of heritability and shared environment for both aggression and delinquency.  相似文献   

The Contribution of Naming Speed to the Simple View of Reading     

Timothy C. Johnston  John R. Kirby 《Reading and writing》2006,19(4):339-361

The purpose of this study was to investigate whether naming speed makes a contribution to the prediction of reading comprehension, after taking into account the product of word decoding and listening comprehension (i.e., the Simple View of Reading; [Gough, P.B. & Tunmer, W.E. (1986). Remedial and Special Education 7, 6–10]), and phonological awareness. In grade 3, word decoding was measured with the Woodcock [(1998). Woodcock Reading Mastery Tests – Revised. Circle Pines, MN: American Guidance Services]. Word Identification and Word Attack subtests, listening comprehension with the Woodcock (1991) [Woodcock Language Proficiency Battery – Revised. Chicago: Riverside Publishing Company] test of Listening Comprehension, naming speed with a picture naming task, and 4 measures assessed phonological awareness. Reading comprehension was assessed in grades 3, 4, and 5 with the Woodcock (1998) Passage Comprehension subtest and in grade 5 with the Gates–MacGinitie reading test. The Simple View was evaluated twice: first, with a pseudoword measure for decoding (Grapheme–Phoneme-conversion product) and, second, with a word identification measure for decoding (word recognition product). Hierarchical regression and commonality analyses indicated that the decoding and listening comprehension products accounted for considerable variance in reading comprehension. Naming speed had a small but significant effect after accounting for the Grapheme–Phoneme-conversion product (2–3%), but little effect after accounting for the word-recognition product (0–2%). Subgroup analyses indicated that naming speed had its primary effect for less able readers. Commonality analyses supported the interpretation that naming speed contributes after the Grapheme–Phoneme-conversion product but not after the word recognition product because naming speed has already had its effect upon word recognition. These results indicate that it is important how the Simple View decoding term is defined, and that the Simple View may be incomplete, especially for less able readers.  相似文献   

Situational interest helps correct misconceptions: An investigation of conceptual change in university students     

Thomas  Christopher L.  Kirby  Lauren A. J. 《Instructional Science》2020,48(3):223-241

Instructional Science - Many learners possess misconceptions regarding instructional content; toward this aim, educational practitioners employ teaching practices that support learners’...  相似文献   

Mother–Child Interaction: Links Between Mother and Child Frontal Electroencephalograph Asymmetry and Negative Behavior          下载免费PDF全文

Naama Atzaba‐Poria  Kirby Deater‐Deckard  Martha Ann Bell 《Child development》2017,88(2):544-554

It is well accepted that parent–child interactions are bidirectional by nature, yet not much is known about the psychophysiological activity underlying these interactions. This study examined, during a parent–child interaction, how a child's negativity statistically predicted maternal frontal electroencephalograph (EEG) asymmetry and how a mother's negativity statistically predicted child frontal EEG asymmetry. Thirty‐four mother–child dyads participated in the study. Maternal and child behaviors and physiology were measured during a puzzle task. Results indicated that mothers whose children exhibited more challenging behaviors during the dyadic interaction displayed more right (relative to left) asymmetry, as did children whose mothers were high in negativity during the interaction. These findings suggest that mothers and children react to each other's signals not only behaviorally but also physiologically.  相似文献   

Socializing medical students in an era of managed care: The ideological significance of standardized and virtual patients     

Lynn M. Harter Ph.D.  Erika L. Kirby Ph.D. 《Communication Studies》2013,64(1):48-67

Health care practitioners come to understand their professional roles through socialization processes. This project investigates value sets that are constructed through interactions between medical students and two important socializing agents: standardized patients and virtual patients. Through in‐depth interviews with medical students and key administrators at two schools as well as an analysis of rhetorical artifacts about the formal curricula at both schools, we explored the ideological aspects of medical instruction as constituted and reinforced, perhaps subtly, covertly, and even inadvertently, through the pedagogical practices of using standardized and virtual patients. Our results highlight how these medical students perceive standardized and virtual patient interactions as an opportunity to manage uncertainty, and confront a primary tension they will face in enacting their professional rotes—being cost effective and efficient while also treating “patients as people.”  相似文献   

RAN Components and Reading Development From Grade 3 to Grade 5: What Underlies Their Relationship?     

George K. Georgiou  Rauno Parrila  John R. Kirby 《Scientific Studies of Reading》2013,17(6):508-534

We examined (a) how rapid automatized naming (RAN) components—articulation time and pause time—predict reading accuracy and reading fluency in Grades 4 and 5, and (b) what cognitive-processing skills (phonological processing, orthographic processing, or speed of processing) mediate the RAN–reading relationship. Sixty children were followed from Grade 3 to Grade 5 and were administered RAN (Letters and Digits), phonological processing, lexical and sublexical orthographic processing, speed of processing, reading accuracy, and fluency tasks. Pause time was highly correlated with reading fluency and shared more of its predictive variance with lexical orthographic processing and speed of processing than with phonological processing. Articulation time also predicted reading fluency, and its contribution was mostly independent from other cognitive-processing skills. Implications for the relationship between RAN and reading are discussed.  相似文献   

Rapid Naming Components and Their Relationship With Phonological Awareness,Orthographic Knowledge,Speed of Processing,and Different Reading Outcomes     

George K. Georgiou  Rauno Parrila  John R. Kirby  Kathy Stephenson 《Scientific Studies of Reading》2013,17(4):325-350

This study examines (a) how rapid automatized naming (RAN) speed components—articulation time and pause time—predict reading accuracy and reading fluency in Grades 2 and 3, and (b) how RAN components are related to measures of phonological awareness, orthographic knowledge, and speed of processing. Forty-eight children were administered RAN tasks in Grades 1, 2, and 3. Results indicated that pause time was highly correlated with both reading accuracy and reading fluency measures and shared more of its predictive variance with orthographic knowledge than with phonological awareness or speed of processing. In contrast, articulation time was only weakly correlated with the reading measures and was rather independent from any processing skill at any point of measurement.  相似文献   

The ‘worn-out athlete’: A clinical approach to chronic fatigue in athletes     

W. Derman  M. P. Schwellnus  M. I. Lambert  M. Emms  C. Sinclair-Smith  P. Kirby 《Journal of sports sciences》2013,31(3):341-351

Chronic fatigue in the athletic population is a common but difficult diagnostic challenge for the sports physician. While a degree of fatigue may be normal for any athlete during periods of high-volume training, the clinician must be able to differentiate between this physiological fatigue and more prolonged, severe fatigue which may be due to a pathological condition. As chronic fatigue can be the presenting symptom of many curable and harmful diseases, medical conditions which cause chronic fatigue have to be excluded. The clinician must then be able to differentiate between chronic fatigue associated with training or chronic fatigue from other medical causes, and also between the chronic fatigue syndrome and the overtraining syndrome. Once the clinician has excluded all of the above medical conditions which cause chronic fatigue in athletes, a significant proportion of fatigued athletes remain without a diagnosis. Novel data indicate that skeletal muscle disorders may play a role in the development of symptoms experienced by the athlete with chronic fatigue. The histological findings from muscle biopsies of athletes suffering from the ‘fatigued athlete myopathic syndrome’ are presented. We have designed a clinical approach to the diagnosis and work-up of the athlete presenting with chronic fatigue. The strength of this approach is that it hinges on the participation of a multidisciplinary team in the diagnosis and management of the athlete with chronic fatigue. The athlete, coach, dietician, exercise physiologist and sport psychologist all play an important role in enabling the physician to make the correct diagnosis.  相似文献   

Development of a scale to measure lifelong learning     

John R. Kirby 《International Journal of Lifelong Education》2013,32(3):291-302

Primary objective: to develop a scale to measure students’ disposition to engage in lifelong learning. Research design, methods and procedures: using items that reflected the components of lifelong learning, we constructed a 14‐item scale that was completed by 309 university and vocational college students, who also completed a measure of deep and surface learning. Main outcomes and results: the lifelong learning scale had reasonable reliability, and showed some differences between students in different discipline and institutions. As hypothesized, lifelong learning was positively related to the deep approach to learning and negatively to the surface approach. Conclusions: although the factors that contribute to the lifelong‐learning attributes measured here have yet to be investigated, this questionnaire can provide an overall picture of a group’s inclinations towards lifelong learning. It can help evaluate the effectiveness of educational interventions, or allow individual students to understand their learning strengths and weaknesses.  相似文献   

Numbers are Just Not Enough: A Critical Analysis of Race,Gender, and Sexuality in Elementary and Middle School Health Textbooks     

Sherry L. Deckman  Ellie Fitts Fulmer  Keely Kirby  Katharine Hoover  Abena Subira Mackall 《Educational Studies A Journal of the American Educational Studies Association》2018,54(3):285-302

Textbooks are a multimillion dollar publishing business in the United States. Even as 21st-century classrooms become more multimodal, digital and hardcopy textbooks remain a key feature of American education. Consequently, classroom textbooks have been shown to control knowledge dissemination across the content areas. In particular, health texts have been uniquely shown to communicate values that validate or marginalize students and encourage healthy or harmful activity. Thus, what textbook makers choose to include as worthy of study, and how they portray various groups of people with regard to race, gender, and sexuality has societal implications. Employing quantitative and qualitative content analysis methods, we analyzed 1,468 images across elementary and middle school health textbooks to examine the portrayal of race, gender, and sexuality. We found that, although gender and racial diversity are well-represented in texts, women and people of color were frequently portrayed in stereotypical roles. For example, girls were depicted daydreaming about heterosexual marriage. Furthermore, this analysis revealed limited representations of sexuality. Findings suggest that focusing on the numerical representation of marginalized groups is not enough to address issues of equity and power in classroom curricula. Instead, we argue, educators must consider the ways in which people are positioned in curricular materials, and ask if portrayals perpetuate or challenge traditional stereotypes.  相似文献