Alterations in the memory code for temporal events induced by differential outcome expectancies in pigeons

The effect of differential outcome expectancies on memory for temporal and nontemporal information was examined. Pigeons were trained to match short (2-sec) and long (8-sec) sample durations to red and green comparison stimuli, and vertical and horizontal lines to vertical and horizontal comparison stimuli. In Experiment 1, one differential outcome (DO) group received food for correct choices on short-sample trials, whereas another received food for correct choices on long-sample trials. On line-orientation trials, half of each DO group received food for correct responses following vertical samples, whereas the other half received food for correct responses following horizontal samples. Overall retention was greater in the DO groups than in a nondifferential (NDO) group that received either food or no food for correct responses on a random half of all trials. Furthermore, although the NDO group displayed a choose-short bias for temporal samples, both DO groups displayed equivalent biases to select the comparison stimulus associated with food. In Experiment 2, differential outcome expectancies were extinguished off-baseline. Subsequently, in the first nondifferential outcome test session, the. DO groups performed less, accurately than the NDO group. These findings indicate that temporal samples are not retrospectively and analogically coded when they are differentially associated with food and no food. Instead, they are remembered in terms of the corresponding outcome expectancies.     

Examining the Effectiveness of a Professional Development Program: Integration of Educational Robotics into Science and Mathematics Curricula

Journal of Science Education and Technology - This study describes a professional development (PD) program designed to support middle school teachers in effectively integrating robotics in science...     

Improving Elementary Grade Students’ Science and Social Studies Vocabulary Knowledge Depth,Reading Comprehension,and Argumentative Writing: a Conceptual Replication

Educational Psychology Review - This experimental study aimed to replicate and extend a previous efficacy study of an elementary grade content literacy intervention that demonstrated positive...     

Indicators for national science and technology policy: how robust are composite indicators?

This article addresses a set of issues that were central to Keith Pavitt's research, that is, the construction and use of tools to measure national innovative performance and to design national policies relating to innovation. It presents an overview of the development of science and technology (S&T) indicators and their use in national policy making and provides evidence of the vulnerability of composite S&T indicators to manipulation. A brief history of the development of S&T indicators begins with the role of the United States followed by their worldwide diffusion with particular emphasis on Europe. Newer developments towards composite indicators, benchmarking and scoreboarding are discussed. To investigate the robustness of innovation scoreboards empirically, a sensitivity analysis of one selected case is presented. It is shown that composite scores and country rank positions can vary considerably depending on the selection process. Thus, the use of scoreboards leaves room for manipulation in the policymaking system. Further research is needed on alternative methods of calculation to prevent their misuse and abuse.     

The venture capital market and technological innovation

This paper was stimulated by assertions that technological innovation in the United States by new or small firms is being delayed or altogether stifled by an inadequate supply of capital for such firms. Analysis of available data on the performance and activities of public venture capital sources and information supplied by knowledgeable people in the field provided little support, on strictly economic grounds, for the argument that a major problem exists. The data, however, are extremely thin and inadequate to suport recommendations for major policy changes.     

“Simultaneous immersion”: How online postgraduate study contributes to the development of reflective practice among public service practitioners

This paper examines how the process of engaging simultaneously in study and work – through online distance-based study – affects students’ capacity to apply their learning in and for the workplace. The paper takes as its starting point the importance of extending notions of “educational effectiveness” beyond course-based attainment to encompass the impact of learning within the workplace. It explores the interface between study and work, focusing on the case of online postgraduate programmes in public management at the University of York. It finds that simultaneous immersion in study and work can create the conditions for “public reflection” that underpin work-based learning and that a key factor is the student-practitioner's ability to mobilise “episodic power.” The paper suggests ways in which existing approaches to online postgraduate learning might be enhanced in order to capitalise on these conditions of simultaneous immersion.     

Local Dependence in an Operational CAT: Diagnosis and Implications

The accuracy of CAT scores can be negatively affected by local dependence if the CAT utilizes parameters that are misspecified due to the presence of local dependence and/or fails to control for local dependence in responses during the administration stage. This article evaluates the existence and effect of local dependence in a test of Mathematics Knowledge. Diagnostic tools were first used to evaluate the existence of local dependence in items that were calibrated under a 3PL model. A simulation study was then used to evaluate the effect of local dependence on the precision of examinee CAT scores when the 3PL model was used for selection and scoring. The diagnostic evaluation showed strong evidence for local dependence. The simulation suggested that local dependence in parameters had a minimal effect on CAT score precision, while local dependence in responses had a substantial effect on score precision, depending on the degree of local dependence present.     

Cultural Components of Sex Differences in Color Preference

Preferences for pink and blue were tested in children aged 4–11 years in three small-scale societies: Shipibo villages in the Peruvian Amazon, kastom villages in the highlands of Tanna Island, Vanuatu, and BaYaka foragers in the northern Republic of Congo; and compared to children from an Australian global city (total N = 232). No sex differences were found in preference for pink in any of the three societies not influenced by global culture (ds − 0.31–0.23), in contrast to a female preference for pink in the global city (d = 1.24). Results suggest that the pairing of female and pink is a cultural phenomenon and is not driven by an essential preference for pink in girls.     

Keeping company: Educating for online friendship

The possibility of online Aristotelian virtue friendships via social network sites continues to be raised by philosophers, but as yet this has not been positioned within the realm of children or adolescents, who are known to be amongst the largest users of social media. Governmental agencies across the globe still struggle to define the boundaries of online usage for children, often depending on school-based curricula highlighting ‘safe-guarding’ online or some form of character education. This, however, often leaves the philosophical thinking behind virtual relationships as incompletely addressed in educational theory, policy and practice, despite there being some very real difficulties for children. Utilising the insights of Aristotle on friendship, I offer a view that may hold potential for a philosophically based policy. I outline three different ways this philosophical literature could have implications for education and indicate the types of policy that each might entail. I will contend that there are three distinct stakeholders here that can be identified as having a significant role to play in what we should do: the schools themselves, educational researchers and policy writers. Finally, I suggest ways in which research, policy and practice might link together.