Genetic and environmental influences on rapid naming and reading ability: A twin study

The present study assesses the genetic and environmental etiologies of reading, rapid naming (RN), and their covariation by fitting multivariate structural equation models to data from 587 twin pairs in which at least one member of the pair exhibited reading difficulties (low-range) and from 360 control (normal-range) twin pairs who were tested in the Colorado Learning Disabilities Research Center. Results from a bivariate phenotypic analysis with two hypothesized latent factors, READ and RN, indicated that the correlation between reading and rapid naming performance for the low-range sample was significantly higher than that of the normal-range sample. When this model was partitioned to include estimates of genetic, shared environmental, and nonshared environmental influences, resulting heritability estimates did not differ significantly for the low-range and normal-range samples for either READ or RN. However, similar to the phenotypic correlation, the genetic correlation between the READ and RN latent factors could not be equated for the two groups. Thus, the etiology of the relationship between reading performance and rapid naming may differ for children with reading difficulties and normally-achieving readers. Moreover, these results support previous findings that the best predictors of reading skills may differ for samples of children with normal reading levels and those with reading difficulties.     

Empirical versus subjective procedures for identifying gender differences in science test items

When judgmental and statistical procedures are both used to identify potentially gender-biased items in a test, to what extent do the results agree? In this study, both procedures were used to evaluate the items in a statewide, 78-item, multiple-choice test of science knowledge. Only one item was flagged by the sensitivity reviewers as being potentially biased, but this item was not flagged by the statistical procedure. None of the nine items flagged by the Mantel-Haenszel procedure were flagged by the sensitivity reviewers. Eight of the nine statistically flagged items were differentially easier for males. Four of these eight measured the same category of objectives. The authors conclude that both judgmental and statistical procedures provide useful information and that both should be used in test construction. They caution readers that content-validity issues need to be addressed when making decisions based on the results of either procedure.     

Pedagogical and technological augmentation of mobile learning for young children interactive learning environments

The ubiquity and educational potential of mobile applications are well acknowledged. This paper proposes six theory-based, pedagogical strategies to guide interaction design of mobile apps for young children. Also, to augment the capabilities of mobile devices, we used a humanoid robot integrated with a smartphone and developed an English-learning app that applied the design strategies to this environment. Our observations of children's one-on-one use support the promise of the strategies and the combined use of robots and mobile devices to be a viable option to help optimize mobile learning.     

The effects of isolation and handling on reactivity to footshock and tactile dorsal stimulation

The effects of isolation and handling on the reactivity of rats to two tactile stimuli were assessed in two experiments. In the first experiment, reactivity to more intense footshock was increased in rats raised in isolation but was not affected by handling by an experimenter. In the second experiment, increased reactivity to airpuff stimuli presented to the dorsal surface of isolation-reared rats was reduced by handling. The data suggest that the effects of handling on shock-motivated behaviors are not due to altered reactivity to shock and that the effect of housing or handling must be considered in behavioral tests in which reactivity to tactile stimulation might play a role as dependent or independent variables.     

Opening classroom interaction: the importance of feedback

Efforts to encourage ‘interactive practice’ in the National Literacy (NLS) and Numeracy (NNS) Strategies in the UK, have led to an emphasis on teacher questions. Recent research into classroom interactions, however, indicate that the pattern of interaction remains largely unchanged since the introduction of these strategies in terms of the type and amount of questions teachers are asking, and the opportunities for extended pupil participation. This article uses evidence gathered from a large‐scale research project examining classroom interactions during literacy and numeracy lessons, and the researchers' critical reflections upon this process, to examine conceptions of interactive pedagogy. It is argued that in order to ‘open’ classroom interaction, emphasis should be less on the questions teachers ask, and more on the manner with which teachers react to pupils' responses to questions. Episodes of classroom interaction from video recorded literacy and numeracy lessons taken as part of the study are used to support this argument. They present evidence of teacher behaviours in reaction to pupils' responses which succeed in facilitating a more interactive learning environment. The implication that such behaviour will contribute towards a model of effective interactive practice is also discussed.     

Action research as a bridge between pre‐service teacher education and in‐service professional development for students and teacher educators

The first part of this paper describes the rationale for and process of engaging student teachers in action research during the fourth and final year of their teacher education, which is also their first year as teachers (induction year). During this year the novice teachers are engaged in an action research project as a compulsory assignment in the course ‘Teacher as researcher’. The objective of the course is to provide novice teachers with reflective tools for systematic examination of their work as teachers. The second part of the paper documents the learning process of the teachers of the course (which can also be viewed as action research), since we jointly planned the course, engaged in reflective dialogues with the students and among ourselves and systematically examined our work by personal diary writing and inviting informal and more formal (questionnaire) feedback from the students. The process of our action research is documented in this paper, whereas the product is hopefully implemented in teaching a better course and in more effective support of our students.

La première partie de cet article explique la logique d'une recherche basée sur l'action menée pendant la quatrième et dernière année de formation éducative, qui par ailleurs est aussi la première année de pratique comme enseignant (année d'essai). Pendant l'année, les novices doivent s'adonner à un projet de recherche pour le cours ‘Enseignant comme chercheur’ dont le but est de leur procurer des outils de réflexion pour pouvoir examiner systématiquement leur travail comme enseignant. La seconde partie de l'article illustre ce que nous, les professeurs du cours, apprenons, ce qui peut être considéré comme recherche basée sur l'action puisque nous avons pensé le cours conjointement, et avons établi des dialogues de réflexion avec les étudiants et entre nous, avons systématiquement examiné notre travail en tenant un journal, avons requis des commentaries critiques formels (sous forme d'un questionnaire) et informels des étudiants. Le processus de notre recherche basée sur l'action est illustré dans cet article et nous espérons que son fruit se fera sentir dans un cours meilleur et un soutien plus efficace des étudiants.

La primera parte de este trabajo describe el racional y el proceso de involucramiento de estudiantes de marcos de formación docente en la investigación en acción, durante el cuarto y último año de su formación, el cual a su vez constituye el primer año como docentes (año de prueba). Durante este año los jóvenes docentes se involucrarán en el proyecto de investigación en acción como una tarea obligatoria en el marco del curso ‘El docente como investigador’. El objetivo del curso es de proveer a los jóvenes docentes de herramientas reflexivas para lograr un análisis sistemático de su labor como docentes. La segunda parte del trabajo documenta el proceso de enseñanza de los docentes del curso, nosotros, que a su vez puede ser visto como una investigación en acción ya que hemos planificado el curso en conjunto, nos sumergimos en diálogos reflexivos con los estudiantes y entre nosotros, y hemos analizado sistemáticamente nuestra tarea a través de la escritura de un diario personal, además de solicitar en forma informal y más formal (cuestionario) una retroalimentación de parte de los estudiantes. El proceso de investigación en acción se documenta en este trabajo, esperamos que el producto del mismo sea implementado en el mejoramiento del curso y un apoyo más eficaz para nuestros estudiantes.

Der erste Teil dieses Artikels beschreibt die Leitgedanken und Vorgehensweise eines Aktionsforschungsprojekts mit Lehramtsstudenten im vierten (somit letzten) Jahr ihrer Ausbildung, das zugleich ihr erstes Jahr als Lehrer ist (‘Bewährungsjahr’). Im Laufe dieses Jahrs sind die Neulehrer verpflichtet, an einem Aktionsforschungsprojekt im Rahmen einer Pflichtlehrveranstaltung, ‘Lehrende als Forschende’ teilzunehmen. Ziel dieser Lehrveranstaltung ist es, Neulehrer mit reflektiven Instrumenten für die systematische Untersuchung ihrer eigenen Arbeit als Lehrer auszurüsten. Im zweiten Teil dieses Artikels wird der Lernprozess der Lehrpersonen dokumentiert, die diese Pflichtlehrveranstaltung gemeinsam entwickelten und abhalten. In kritsch‐reflektivem Dialog mit den Studierenden und miteinander, durch Führen eines perseonlichen Tagebuchs und Auseinandersetzung mit formalen und informalen Reaktionen der Studierenden auf die Lehrveranstaltung, fand somit ein Aktionsforschungsprojekt der Lehrerausbilder selbst statt. Der Lernprozess, der sich in diesem Artikel niederschlägt, wird in einer verbesserten Lehrveranstaltung und einer effektiveren Unterstützung der Studierenden beim Übergang in die Berufswirklichkeit umgesetzt.