The role of instructional variables in conceptual change in high school physics topics

This study was conducted to determine the effect of three variables on conceptual change in physics. Ninth and 10th-grade students who, despite instruction, still held nonscientific intuitive ideas about the motion of objects participated in viewing a demonstration, engaged in student-to-student discussion, and/or read a refutational text about Newton's laws of motion. Students (N = 310) were randomly assigned within classes to eight groups representing combinations of the three activities and participated in pretesting, instruction, and posttesting. Posttest results revealed that reading the refutational text helped students change their intuitive ideas to scientific ones, while seeing a demonstration affected how students interacted with group and text on some measures. Discussing ideas in a group did not lead to significant learning of scientific notions but, rather, caused students to be less influenced by either the demonstration or the text.     

Gaps in affiliation indexing in Scopus and PubMed

Objective

The authors sought to determine whether unexpected gaps existed in Scopus''s author affiliation indexing of publications written by the University of Nebraska Medical Center or Nebraska Medicine (UNMC/NM) authors during 2014.

Methods

First, we compared Scopus affiliation identifier search results to PubMed affiliation keyword search results. Then, we searched Scopus using affiliation keywords (UNMC, etc.) and compared the results to PubMed affiliation keyword and Scopus affiliation identifier searches.

Results

We found that Scopus''s records for approximately 7% of UNMC/NM authors'' publications lacked appropriate UNMC/NM author affiliation identifiers, and many journals'' publishers were supplying incomplete author affiliation information to PubMed.

Conclusions

Institutions relying on Scopus to track their impact should determine whether Scopus''s affiliation identifiers will, in fact, identify all articles published by their authors and investigators.     

An Analysis of Identifier Use in SHARE

SHARE, an open metadata aggregator for scholarly content launched in 2013, provides access to dispersed scholarly content through a powerful application programming interface and set of tools for research discovery and analytics. Metadata is crucial for retrieval in systems like SHARE. The use of unique identifiers promotes the disambiguation of people, places, and objects and the linking of related information in aggregated systems. Yet, identifiers have not been uniformly adopted by organizations and institutions worldwide. This column seeks to identify and explore the extent of identifier use in the SHARE catalog.     

Young Students’Informal Statistical Knowledge

This article reports some results of an informal study of very young children's reactions to some visual displays of data.     

How does the ecological foraging behavior of desert kangaroo rats (Dipodomys deserti) relate to their behavior on radial mazes?

Experiment 1 showed that laboratory-reared desert kangaroo rats, like domestic Norway rats, efficiently search for food on a radial arm maze (RAM) by avoiding revisiting arms within a trial. By placing an RAM on the floor so the animals could approach food from any direction, Experiment 2 tested whether efficient search by kangaroo rats was based on tactics of distance minimizing, central-place foraging, trail following, or meandering. In contrast to the dominant trail-following tactic of domestic Norway rats (Hoffman, Timberlake, Leffel, & Gont, 1999), kangaroo rats tended to distance minimize, whether maze arms were present or not. Experiment 3 indicated that kangaroo rats treated a floor configuration of eight food cups as twopatches of four, based on beeline travel between patches and meandering within them. We conclude that similar performance in an elevated RAM by different species can be based on different tactics, and we suggest that a laboratory apparatus can be used to cast light on niche-related mechanisms.     

Collaborate and Innovate: The Impact of Academic Librarians on the Commercialization of University Technology

The University of Arizona Library, in collaboration with the campus commercialization unit, created a partnership that contributes to the early development of inventions in the commercialization pipeline. The library-commercialization business-intelligence workgroup was incorporated into the overall campus commercialization business-development workflow in 2014 and is comprised of librarians and commercialization professionals working together to provide insight and decision support for development of commercialization strategies for inventions emerging from university research that aligns with market drivers. These efforts are recognized by university leadership as critical to the strategic plan of the university. This article discusses the impact of the workgroup and how the group of librarians contributed to the development of new companies, new licenses, and financial impact of economic development at a large land-grant university and larger community.     

Development of oral reading fluency in children with speech or language impairments: a growth curve analysis

This longitudinal study used piece-wise growth curve analyses to examine growth patterns in oral reading fluency for 1,991 students with speech impairments (SI) or language impairments (LI) from first through third grade. The main finding of this study was that a diagnosis of SI or LI can have a detrimental and persistent effect on early reading skills. Results indicated differences between subgroups in growth trajectories that were evident in first grade. A large proportion of students with SI or LI did not meet grade-level reading fluency benchmarks. Overall students with SI showed better performance than students with LI. Reading fluency performance was negatively related to the persistence of the SI or LI; the lowest performing students were those originally identified with SI or LI whose diagnosis changed to a learning disability. The results underscore the need to identify, monitor, and address reading fluency difficulties early among students with SI or LI.     

Absorptive capacity: A conceptual framework for understanding district central office learning

Globally, school systems are pressed to engage in large-scale school improvement. In the United States and other countries, school district central offices and other local governing agencies often engage with external organizations and individuals to support such educational change efforts. However, initiatives with external partners are not always productive. We draw on the idea of absorptive capacity to present a conceptual framework for understanding when and under what conditions partnerships are likely to foster district learning and support change efforts. We contend that prior knowledge, communication pathways, strategic knowledge leadership, and resources to partner are preconditions for a district central office’s absorptive capacity, and we identify the features of the external partner that likely matter for productive partnering. We argue that the relationship between district absorptive capacity and features of the partner is mediated by the nature of the interactions between district and partner, with likely consequences for organizational learning outcomes. For researchers, this framework serves as a tool for understanding how a district central office can learn from an external partner for educational improvement efforts. For school district leaders and external partners, this framework provides a structure for thinking strategically about when and under what conditions a partnership is likely to be productive.