One-trial simultaneous and backward excitatory fear conditioning in rats: Lick suppression, freezing, and rearing to CS compounds and their elements

Three experiments with rat subjects sought to enhance one-trial excitatory simultaneous and backward fear conditioning by using a two-element compound conditioned stimulus (CS) instead of only a single element. During conditioning, experimental groups received a 4-sec CS either coextensively with a 1-mA grid-shock unconditioned stimulus (US) or immediately after US termination. In subsequent tests, CSs evoked more lick suppression and freezing in these groups than in various controls. Compound CSs evoked more lick suppression and freezing than did CS elements, but did so equally for experimental and control groups. Therefore, the use of compounds did not enhance conditioning. Unexpectedly, an explicitly unpaired control in which CS followed US termination by 3 min tended to show more CS-evoked suppression and freezing than did a control in which CS preceded US onset by 3 min. This result raises the possibility that associations between the CS and the training context might engender responding to backward-paired CSs.     

Student perceptions and use of feedback during active learning: a new model from repeated stimulated recall interviews

As active learning pedagogies continue to increase in popularity in higher education, new questions have emerged about how instructors can manage all of the associated ‘moving parts’ of active learning, including how and when to deliver feedback. Currently, little is known about how students perceive the effects of verbal feedback during in-class activities. This study examined two large sections of introductory biology held in an active learning SCALE-UP (Student-Centred Active Learning Environments with Upside-down Pedagogies) classroom. Thematic analysis of repeated stimulated recall interviews with 15 students (72 total interviews) uncovered three main categories of feedback effects that students perceived: assure, alert and add (AAA). These three categories were supported by repeated stimulated recall surveys with a larger student population (262 students). We describe each category, quantify the frequency of each category in the target course, outline the students’ perceived impact of each on examination preparation and performance, and conclude with implications regarding how understanding students’ perceptions of their feedback experience may help instructors to deliver student-centred feedback during active learning.     

Numerical discrimination by rats using sequential auditory stimuli

Three rats were trained under a discrimination procedure in which responding was reinforced only following the repeated presentation of three bursts of white noise (S+). S? consisted of presentations of either two or four bursts of noise. All animals responded significantly more in the presence of S+ and, in two cases, showed lower response rates to both “2” and “4” stimuli. Responding by the third animal revealed differentiation between S+ and the stimulus “2,” but no reliable suppression to stimulus “4.” The present instances of discriminative control by the stimulus “3” replicate Fernandes and Church’s (1982) demonstration of control by sequential auditory stimuli in the rat. Moreover, because the present procedure involves adjacent S? values both greater as well as less than S+, these results extend our knowledge of the rat’s abilities with sequential auditory stimuli: Rats are capable of making intermediate numerical discriminations based upon something other than a simple many-versus-few dichotomy.     

Grassroots: Supporting the Knowledge Work of Everyday Life

This article introduces a simple mapping tool called Grassroots, a software product from a longitudinal study examining the use of information communication technologies and knowledge work in communities. Grassroots is an asset-based mapping tool made possible by the Web 2.0 movement, a movement which allows for the creation of more adaptable interfaces by making data and underlying database structures more openly available via syndication and open source software. This article forwards three arguments. First is an argument about the nature of the knowledge work of everyday life, or an argument about the complex technological and rhetorical tasks necessary to solve commonplace problems through writing. Second is an argument about specific technologies and genres of community-based knowledge work, about why making maps is such an essential genre, and about why making asset maps is potentially transformative. Third is an argument about the making of Grassroots itself; a statement about how we should best express, test, and verify our theories about writing and knowledge work.     

An analysis of the different patterns of 1:1 interactions between educational professionals and their students with varying abilities in inclusive classrooms

The purpose of this study was to examine the different types and patterns of 1:1 interactions provided by general educators, special educators and paraprofessionals to children with mild disabilities (n?=?13), severe disabilities (n?=?13), and children without disabilities (n?=?13) in inclusive classrooms. General educators, special educators, and paraprofessionals' 1:1 interactions with students in three comparison groups were recorded in 17 elementary and middle school classrooms using a partial interval observation system. We found significant differences with respect to interaction frequency and content. Teachers and paraprofessionals had consistently more 1:1 interactions with students with severe disabilities, followed by children with mild disabilities, and then students without disabilities. In comparison to special education teachers and paraprofessionals, general educators interacted significantly more frequently with children without disabilities and children with mild disabilities. In contrast, paraprofessionals interacted significantly more often with students with severe disabilities and less frequently with children with mild disabilities and students without disabilities. Instructional interactions in social, behavioural, and functional domains were infrequent in these classrooms. We conclude with a brief discussion of the implications of these findings for future research and practice.     

A study of digital curator competences: A survey of experts

Abstract

The aim of this research was to define competences for digital curators, and to validate a Delphi process in the context of Library, Archives, Museum curriculum development. The objective for the study was to obtain consensus regarding competence statements for Library, Archives and Museum digital curators.

The Delphi method, a research technique, typically used to develop a consensus of opinion for topic areas in which there is little previously documented knowledge, was used in specifying the digital curator competences in LAM context. Three rounds of questionnaires with controlled feedback with space for comments and/or suggestions were sent to panel members. Five point Likert scale was employed in the questionnaire. Consensus was determined when a competence statement received a mode higher than 3, an average mean more than 3.5, and a standard deviation smaller than 1.0.

Response rates for rounds I, II and III were: 70% (n = 16), 87.5% (n = 14), and 94% (n = 15) respectively. Of the 18 digital curator competences listed in the first round questionnaire, 13 (70%) achieved consensus as being necessary digital curator competences required of advanced level digital curator. Other inputs of respondents like comments and suggestions were also analyzed. An additional 23 digital curator competence statements were also suggested by the panel in round I and further developed in subsequent rounds. In round II, 12 (30%) competence statements achieved consensus. The final round and editing of competence statements led to 20 statements that describe what a well-prepared digital curator trained to participate in digital curation work should be able to do.     

Political persuasion on social media: A moderated moderation model of political discussion disagreement and civil reasoning

Abstract

Social media and news use arguably contribute to the prevalence of contentious politics because individuals may express dissent through their social networks as they consume news. This study seeks to test whether individuals might be more open to political persuasion in this context, especially if they are exposed to political disagreement or discuss politics in a civil manner. Relying on survey data from the UK, results based on a moderated moderation model show that (a) social media news use predicts political persuasion on social media (direct effects) and, (b) discussion disagreement and civil reasoning moderate this relationship in two-way and three-way interactions.     

Tools that come from within: Learning to teach in a cross-cultural adult literacy practicum

We report on a study of preservice teachers who tutored adults learning English in a free evening class while simultaneously taking a course titled Community Literacy. Exploring their participation, we wondered in what ways pedagogy developed within this context. Drawing on a close discourse analysis of preservice teachers’ written work, we found that each preservice teacher constructed pedagogy differently but in ways that drew on students’ funds of knowledge, interests, ways of learning, and political interests. Moreover, through reflections on practice, preservice teachers sedimented their identities as teachers who see diversity as a resource in teaching.