Conjunctive schedules of reinforcement IV: Effects on the pattern of responding of changes in requirement at reinforcement

The effects of different schedule requirements at reinforcement on patterns of responding by pigeons were assessed under conjunctive schedules with comparable response-number requirements, Under one conjunctive schedule (conjunctive fixed-interval fixed-ratio schedule), a response was reinforced after a 6-min interval had elapsedand a specific minimum number of responses had been emitted, Under a second conjunctive schedule, a response was reinforced after the 6-min fixed interval and upon completion of a tandem schedule requirement (conjunctive fixed-interval tandem schedule), This schedule retained the same required minimum number of responses as the first conjunctive schedule, but responses were never reinforced according to a fixed-ratio schedule; the tandem schedule was comprised of a fixed-ratio and a small (.1 to 10.0 sec) fixed-interval schedule, Under the conjunctive fixed-interval fixed-ratio schedule, responding was characterized by an initial pause, an abrupt transition to a high response rate, and a second transition to a lower rate that prevailed or slightly increased up to reinforcement, Under the conjunctive fixed-interval tandem schedule, pauses were extended, response rates were lower, and the initial high rate of responding was generally absent, The above effects depended upon the size of the fixed interval of the tandem schedule, The distinct pattern of responding generated by conjunctive fixed-interval fixed-ratio schedules depends upon occasional reinforcement of fixed-ratio responding and not merely on the addition of a minimum number of required responses.     

Effects of word and morpheme familiarity on reading of derived words

The purpose of this study is to examine factors that influence students’ reading of derived words. Recent research suggests that the lexical quality of a derived word depends on the familiarity of the word, its morphemic constituents (i.e., base word and affixes), and the frequency with which the base word appears in other words (i.e., members of the same word family or family frequency). On the premise that better and more experienced readers have higher quality lexical representations, we explore the extent to which accuracy of reading derived words by 4th and 6th graders is related to measures of familiarity, including derived and base word frequencies, family size, average family frequency, and word length. The results of an exploratory factor analysis indicated that these measures formed two factors, one representing morphemic constitution and the second representing exposure to the word family; both factors accounted for significant variance in the students’ derived word reading. Comparisons of sets of derived words contrasted on familiarity properties showed that performance on derived words, overall, is better for 6th than 4th graders and for good than poor readers. On the measures of family frequency and family size, there were significant discrepancies between grade level and reading ability and frequency characteristics. These add support to the view that morphemic analysis and wide reading experience contribute to derived word reading.     

Merging Catalogs: Creating a Shared Bibliographic Environment for the State University Libraries of Florida

The eleven state universities of Florida have long shared an integrated library system architecture, but maintained separate databases. In 2009 the deans and directors of the eleven state university libraries tasked the three largest libraries to investigate the feasibility of combining all catalogs into a single bibliographic entity. With the help of a central automation group, the three successfully negotiated the fine line between sharing data and retaining the unique work created by each of the three libraries. The groundwork laid in this initiative should prove valuable to other libraries seeking to centralize functions and pool resources.     

Advances in the application of information technology to sport performance

This paper overviews the diverse information technologies that are used to provide athletes with relevant feedback. Examples taken from various sports are used to illustrate selected applications of technology-based feedback. Several feedback systems are discussed, including vision, audition and proprioception. Each technology described here is based on the assumption that feedback would eventually enhance skill acquisition and sport performance and, as such, its usefulness to athletes and coaches in training is critically evaluated.     

What lexical decision and naming tell us about reading

The lexical decision (LD) and naming (NAM) tasks are ubiquitous paradigms that employ printed word identification. They are major tools for investigating how factors like morphology, semantic information, lexical neighborhood and others affect identification. Although use of the tasks is widespread, there has been little research into how performance in LD or NAM relates to reading ability, a deficiency that limits the translation of research with these tasks to the understanding of individual differences in reading. The present research was designed to provide a link from LD and NAM to the specific variables that characterize reading ability (e.g., decoding, sight word recognition, fluency, vocabulary, and comprehension) as well as to important reading-related abilities (phonological awareness and rapid naming). We studied 99 adults with a wide range of reading abilities. LD and NAM strongly predicted individual differences in word identification, less strongly predicted vocabulary size and did not predict comprehension. Fluency was predicted but with differences that depended on the way fluency was defined. Finally, although the tasks did not predict individual differences in rapid naming or phonological awareness, the failures nevertheless assisted in understanding the cognitive mechanisms behind these reading-related abilities. The results demonstrate that LD and NAM are important tools for the study of individual differences in reading.     

Professional Identity Development of Teacher Candidates Participating in an Informal Science Education Internship: A focus on drawings as evidence

This study investigated the professional identity development of teacher candidates participating in an informal afterschool science internship in a formal science teacher preparation programme. We used a qualitative research methodology. Data were collected from the teacher candidates, their informal internship mentors, and the researchers. The data were analysed through an identity development theoretical framework, informed by participants’ mental models of science teaching and learning. We learned that the experience in an afterschool informal internship encouraged the teacher candidates to see themselves, and to be seen by others, as enacting key recommendations by science education standards documents, including exhibiting: positive attitudes, sensitivity to diversity, and increasing confidence in facilitating hands‐on science participation, inquiry, and collaborative work. Our study provided evidence that the infusion of an informal science education internship in a formal science teacher education programme influenced positively participants’ professional identity development as science teachers.     

The study of literature and culture in a web‐based environment

The rationale behind the project is based on the belief that the study of a work of literature can effectively open a window of opportunity for pupils to study other countries’ cultures and identities as well as contribute to pupils’ own identity construction and to the understanding of the identity of others. Information and communication technologies serve as an educational catalyst for collaborative learning which transcends national boundaries and presents pupils with the opportunity to study cultural and identity similarities and differences, to strengthen their national identities and, at the same time, to appreciate the characteristics of other identities and cultures.

L’étude de la Littérature et de la Culture dans un environnement fondé sur la Toile

L’idée qui sous‐tend ce projet repose sur le fait que l’on croit que l’étude d’une ?uvre littéraire peut effectivement constituer une fenêtre pour les élèves, l’occasion d’étudier les cultures et les identités d’autres pays tout en contribuant à la construction de la propre identité de ces élèves et à la compréhension de l’identité des autres. Les TIC servent de catalyseur éducatif pour faciliter l’apprentissage collaboratif qui transcende les frontières nationales et offre aux élèves l’occasion d’étudier les ressemblances et les différences de cultures et d’identités, de renforcer leurs identités nationales et en même temps d’apprécier les caractéristiques d’autres identités et cultures.

Das Studium von Literatur und Kultur in einer Web‐basierten Umgebung

Die logische Grundlage dieses Projekts ist die Überzeugung, dass ein Studium im Bereich von Literatur wirksam sowohl ein Fenster zum Einblick in andere Kulturen und Identitäten öffnen kann, als auch zum eigenen Identitätsaufbau der Schüler und zum Verständnis der Identität anderer beitragen kann. ICT dient damit als Bildungskatalysator für kooperatives Lernen, damit die nationalen Grenzen überwunden werden können und bietet den Schülern die Gelegenheit, kulturelle‐ und Identitätsähnlichkeiten und Unterschiede zu erkennen, um ihre nationalen Identitäten zu stärken und gleichzeitig die Merkmale anderer Identitäten und Kulturen kennen und schätzen zu lernen.     

Homework Stress: Construct Validation of a Measure

This article presents 2 studies aimed at validating a measure of stress experienced by children and parents around the issue of homework, applying Benson's program of validation (Benson, 1998 Benson, J. 1998. Developing a strong program of construct validation: A test anxiety example. Educational Measurement: Issues and Practice, 17: 10–17. doi: 10.1111/j.1745–3992.1998.tb00616.x[Crossref] , [Google Scholar]). Study 1 provides external validity of the measure by supporting hypothesized relations between stress around homework and students’ and parents’ positive and negative affect, students’ sense of competence, and students’ type of motivation. In Study 2, the measure was administered to students with and without learning disability—2 groups assumed to differ in the level of stress experienced while doing homework. Results of both studies support the validity of the measure.     

Achieving extra‐genre rhetorical goals: Disarming expectations

This study employed turning point analysis to examine developing mentor relationships and the association between mentor relationships and individual‐organizational relationships. Graduate students from three communication departments reported turning points which they experienced during the early development of their mentor relationships. Findings indicated that many turning points occurred of which have previously been assumed to occur in later stages of relationship development. Some types of turning points were associated with greater changes in identification with the mentors. Others were associated with greater changes in identification with the departments. Results call broad phase models of mentor relational development into question. Secondly, results indicate that mentor relationships are not necessarily associated with individual‐organizational relationships. Mentor relationships, then, should not be assumed to benefit organizations.