Prenatal hormones and postnatal socialization by parents as determinants of male-typical toy play in girls with congenital adrenal hyperplasia

Toy choices of 3- to 10-year-old children with congenital adrenal hyperplasia (CAH) and of their unaffected siblings were assessed. Also assessed was parental encouragement of sex-typed toy play. Girls with CAH displayed more male-typical toy choices than did their unaffected sisters, whereas boys with and without CAH did not differ. Mothers and fathers encouraged sex-typical toy play in children with and without CAH. However, girls with CAH received more positive feedback for play with girls' toys than did unaffected girls. Data show that increased male-typical toy play by girls with CAH cannot be explained by parental encouragement of male-typical toy play. Although parents encourage sex-appropriate behavior, their encouragement appears to be insufficient to override the interest of girls with CAH in cross-sexed toys.     

Time limits in testing: An analysis of eye movements and visual attention in spatial problem solving

Individuals with an aptitude for interpreting spatial information (high mental rotation ability: HMRA) typically master anatomy with more ease, and more quickly, than those with low mental rotation ability (LMRA). This article explores how visual attention differs with time limits on spatial reasoning tests. Participants were assorted to two groups based on their mental rotation ability scores and their eye movements were collected during these tests. Analysis of salience during testing revealed similarities between MRA groups in untimed conditions but significant differences between the groups in the timed one. Question‐by‐question analyses demonstrate that HMRA individuals were more consistent across the two timing conditions (κ = 0.25), than the LMRA (κ = 0.013). It is clear that the groups respond to time limits differently and their apprehension of images during spatial problem solving differs significantly. Without time restrictions, salience analysis suggests LMRA individuals attended to similar aspects of the images as HMRA and their test scores rose concomitantly. Under timed conditions however, LMRA diverge from HMRA attention patterns, adopting inflexible approaches to visual search and attaining lower test scores. With this in mind, anatomical educators may wish to revisit some evaluations and teaching approaches in their own practice. Although examinations need to evaluate understanding of anatomical relationships, the addition of time limits may induce an unforeseen interaction of spatial reasoning and anatomical knowledge. Anat Sci Educ 10: 528–537. © 2017 American Association of Anatomists.     

The Internet Backbone and the American Metropolis

Despite the rapid growth of advanced telecommunications services, there is a lack of knowledge about the geographic diffusion of these new technologies. The Internet presents an important challenge to communications researchers, as it threatens to redefine the production and delivery of vital services including finance, retailing, and education. This article seeks to address the gap in the current literature by analyzing the development of Internet backbone networks in the United States between 1997 and 1999. We focus upon the intermetropolitan links that have provided transcontinental data transport services since the demise of the federally subsidized networks deployed in the 1970s and 1980s. We find that a select group of seven highly interconnected metropolitan areas consistently dominated the geography of national data networks, despite massive investment in this infrastructure over the study period. Furthermore, while prosperous and internationally oriented American cities lead the nation in adopting and deploying Internet technologies, interior regions and economically distressed cities have failed to keep up. As information-based industries and services account for an increasing share of economic activity, this evidence suggests that the Internet may aggravate the economic disparities among regions, rather than level them. Although the capacity of the backbone system has slowly diffused throughout the metropolitan system, the geographic structure of interconnecting links has changed little. Finally, the continued persistence of the metropolis as the center for telecommunications networks illustrates the need for a more sophisticated understanding of the interaction between societies and technological innovations.     

(Re)turning to practice in teacher education: embodied knowledge in learning to teach

Contemporary research conversations about the utility of practice theories to professional education support the reconceptualisation of pre-service teacher education in ways that provide strong preparation for continued professional learning. This paper reports on an empirical inquiry that introduced a theoretically informed practice-based intervention in a pre-service teacher education course in order to judge the utility of such an approach for student learning. Innovations within the Study of Teaching programme illustrate the bringing together of pedagogies of observation, pedagogies of enactment, and pedagogies of reflection toward an integrated theory of teacher education that focuses on the teaching body as a central site for research and for the building of preparatory knowledge and skill for ongoing learning. Data was collected from pre-service teachers involved in the programme through video and audio recordings along with individual and focus group interviews, questionnaires and student reflection on video recordings. These were analyzed within an emerging theoretical framework derived from both practice-theoretical literature and international empirical research into core practices. Initial findings suggest that a focus on practice within pre-service teacher education may enhance traditional understandings of ‘practice-based’ approaches that situate the study of practice outside of the university, in school settings. These findings have implications for the ongoing reform of teacher education in increasingly regulated contexts framed in terms of teacher quality.     

The effects of an intercultural communication workshop on participants’ intercultural communication competence: An exploratory study

It was the purpose of the present study to measure the effects of an intercultural communication workshop (ICW) on American participants’ intercultural communication competence. This study utilized the behavior observation methodology developed by Ruben (1976) with the contrast‐American simulation technique developed by Stewart (1966) to investigate intercultural communication competence development. Using a nonequivalent control group design, a structured communication event employing the contrast‐American technique was developed in which each subject discussed the topic of leadership communication with a contrast‐American at two intervals (pretest and posttest) and these interactions were videotaped. Two judges then viewed the videotaped interactions and rated the subjects’ intercultural communication competence using behavioral observation measures. The results suggest that (I) behavioral observation methodology can be reliably employed to assess intercultural communication competence and (2) the ICW did not significantly improve the American participants’ intercultural communication competence. These findings are discussed in terms of intercultural education/training and suggestions for future research on the ICW are presented.     

Review

Lively Elementary Science Programs: A Handbook of Suggestions for Introducing and Maintaining Innovative Science Activities. Submitted to the Massachusetts Advisory Council on Education by Dean K. Whitla, Project Director, and Dan C. Pinck, Associate Project Director. Office of Instructional Research and Evaluation in the Faculty of Arts and Sciences, and the Harvard Graduate School of Education, Harvard University, Cambridge, Massachusetts 02138. January 1974. $3.25     

Attempting to document teachers' professional knowledge

This paper explores ways of uncovering and documenting teachers' professional knowledge. Through a research project that has worked with a number of teachers over an extensive period of time, serious attempts have been made to make the (often) tacit nature of teachers' knowledge more explicit in ways that might begin to address the question of what a knowledge base in teaching might look like. The paper examines methodological issues that have guided this research and illustrates how the knowledge of teachers can be articulated in ways that might help to clarify particular features of practice. An important aspect of the research reported in this paper is the need to have a language of teaching that is common to participants. Therefore, the research reported in this paper offers one way of considering this issue and offers a methodology for exploration and further development whilst simultaneously highlighting some aspects of the problematic nature of developing such a methodology.     

Telecommunications

Mitchell L. Moss, ed. Telecommunications and Productivity (Reading, Mass.: Addison-Wesley Advanced Book Program, 1981—price not given)

William C. House, ed. Electronic Communications Systems (Petrocelli Batks, 1101 State Rd–Bldg D, Princeton, N.J. 08540 —$25.00)