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1.
Minda Borun Margaret B. Chambers Jennifer Dritsas Julie I. Johnson 《Curator: The Museum Journal》1997,40(4):279-295
Can enhanced exhibits produce measurable increases in active family learning? Four Philadelphia area science institutions—The Franklin Institute Science Museum, the Academy of Natural Sciences, the New Jersey State Aquarium at Camden, and the Philadelphia Zoo—have investigated the answer to this question as part of the PISEC (Philadelphia-Camden Informal Science Education Collaborative) Family Learning Project. PISEC is conducting research and exhibit development aimed at increasing the understanding of family learning in science museums and identifying the characteristics of successful family learning exhibits. The PISEC project is organized into three phases: (1) a research study to establish behavioral indicators for family science learning (Borun et al., 1996); (2) the development and evaluation of four exhibit enhancements aimed at achieving family science learning goals (Borun and Dritsas, 1997); (3) a research study comparing the frequency of learning behaviors for treatment families that have used enhanced test exhibits to control-group families that have used only the test exhibits. The results of the first two phases of this project have been discussed previously. This article describes the research study conducted during Phase 3 of the project. Results of the study show that all four modified exhibits produced significant increases in performance indicators. Using seven characteristics of successful family exhibits—multi-sided, multi-user, accessible, multi-outcome, multi-modal, readable, and relevant—as a guide to exhibit development proved to be an effective strategy for increasing active family learning. 相似文献
2.
How can museums encourage active family learning? Four Philadelphia area science institutions—The Franklin Institute Science Museum, the New Jersey State Aquarium, the Academy of Natural Sciences, and the Philadelphia Zoo—have investigated the answer to this question as part of the PISEC (Philadelphia-Camden Informal Science Education Collaborative) Family Learning Project. PISEC is conducting research and exhibit development aimed at increasing understanding of family learning in science museums and identifying the characteristics of successful family learning exhibits. The PISEC project has three phases, two of which have been completed: (1) a research study to establish behavioral indicators for family learning; (2) the development and evaluation of four exhibit enhancements aimed at achieving family learning goals; (3) a research study of the impact of the four enhanced exhibits. This article will describe the results of formative evaluation conducted during Phase 2 of the project. “Family learning components,” or exhibit enhancements, designed to help adults and children learn together, were developed, field-tested, revised, and installed at each of the four museums. PISEC has identified seven characteristics of successful family learning exhibits: multi-sided, multi-user, accessible, multi-outcome, multi-modal, readable, and relevant. The four PISEC family learning components, embodying these characteristics, appear to have increased active family learning. 相似文献
3.
David A. Ucko 《Curator: The Museum Journal》2010,53(2):129-136
Abstract The National Science Foundation (NSF) funded the National Research Council report Learning Science in Informal Environments to synthesize the growing body of diverse research underlying informal science learning. Intended outcomes were to establish a base for future research, to provide evidence‐based guidance for those developing and delivering informal learning experiences, to broaden the definition of “learning” beyond that typically used in formal education, to encourage knowledge sharing across the heterogeneous informal science education field, and to provide a measure of external validation for the value of learning in informal settings. NSF investment in this study is part of a larger ongoing effort by the Informal Science Education program to advance knowledge and practice and build capacity in the field. 相似文献
4.
Abstract How and what adults learn in the context of a family visit to an aquarium is a valuable and important question to ask, given the significance of this demographic to institutions such as these. Based on a larger empirical work,1 this paper reports on the nature and character of adult learning within a family group context while visiting the Vancouver Aquarium Marine Science Centre (Canada), and the longitudinal effects of such experience in the weeks following the visit. In this study a multiple or collective instrumental case study approach was employed to examine the learning experiences of the adult members of 13 family groups; this approach demonstrates that adults visiting the aquarium as part of a family group are active social learners and not merely facilitators of the experience for younger visitors or caregivers. Our outcomes also indicate that the adult members of the participant family groups learned in a multiplicity of domains including the cognitive, the social, and the affective, as a result of their visit to the Vancouver Aquarium. In addition, we discuss the longitudinal impacts of the aquarium visit and provide valuable insights as to the relevance of these experiences in visitors' everyday lives. 相似文献
5.
Abstract In this paper we describe the particularities of Latin American museum visitors as learners through an exploratory study that took place at Universum, Museo de las Ciencias, a science museum located in Mexico City. The exploration of the learning experiences of Latin American family groups was carried out by means of a case study approach and from a socio‐cultural theory perspective. This inquiry of 20 family groups reveals that nuances of the concept of “family,” in the Mexican context, are important in studying family learning in museum settings. The prominent roles of the extended family and interactions within family groups are discussed as intrinsic traits of a family’s museum learning. In addition, the outcomes of this study highlight the impact that the Latin American notion of educación has on museum education and research, as it encompasses issues that relate to the perpetuation of socio‐cultural values, child‐rearing, and ultimately, cultural identity. 相似文献
6.
Abstract This article discusses the results of a study concerning the interactive effects of learning style and computer competency on student satisfaction in library and information science (LIS) distance learning courses. “Concrete” and “abstract” learners react differently to online courses given different technology backgrounds. This study finds a statistically significant relationship between student satisfaction with Web-based courses, the grouping differences of learning style preferences (converging, diverging, assimilating, accommodating), and computer competency (high level and low level). The study concludes that, when students differ with regard to computer competency, there is a difference among learning styles with respect to student satisfaction level. 相似文献
7.
《Visual Communication Quarterly》2013,20(1):16-31
Using The Philadelphia Inquirer as a case study, this article examines the visual behaviors of news professionals as they pertain to the importance and function of the social construction of news photos. The author posits the concept of the photographic principle to explain the process by which news professionals maintain photographic integrity—especially given the latest technology and its potential for misuse in constructing news photos. The photographic principle is defined as the guiding standard photo editors use to preserve the inherent value of news photographs. As the article shows, photo editors at the Inquirer provided the model on which the author based the concept of the photographic principle—a positive example of news workers who strive to protect the veracity of news photos. 相似文献
8.
Marsha L. Semmel 《Curator: The Museum Journal》2010,53(2):155-162
Abstract The Institute of Museum and Library Services (IMLS) has funded hundreds of projects that promote lifelong learning in all disciplines and types of museums and libraries, including museum/library partnerships with schools, universities, and other formal learning organizations. Learning Science in Informal Environments: People, Places, and Pursuits (LSIE) is a milestone in a continuing quest to understand and articulate the impact of informal learning experiences. Its recommendations identify significant issues for future research and practice, with implications beyond science learning. This article places the report in the context of previous and future IMLS work, including increased agency focus on—and resources for—research, evaluation, collaborative projects, and professional development. 相似文献
9.
Andrew Shouse Bruce V. Lewenstein Michael Feder Philip Bell 《Curator: The Museum Journal》2010,53(2):137-154
Abstract In this article, the editors of the recent National Research Council report Learning Science in Informal Environments: People, Places, and Pursuits discuss the report’s implications for museum professionals. The report is a synthesis of some 2,000 studies and evaluations of learning in non‐school settings such as museums. Here we focus on three specific topics discussed in the full report, which we see as particularly important for museum professionals. These are: a framework for developing and studying science learning experiences; cultural diversity as an integral resource for learning; and assessment of learning. Many museums include “learning” among their goals and many researchers concern themselves with how museums and other settings can be organized to support learning. Yet this wealth of research is rarely brought into focus and offered as guidance to the museum community. 相似文献
10.
Abstract Writing from a science museum perspective, the authors argue that the Learning Science in Informal Environments report arrives at a critical time, when growing policy interest in informal learning environments provides new opportunities for the museum field but also introduces potential threats to autonomy, diversity, and creativity. The authors explore critical questions raised in the report, including: 1) whether and how we represent our subject matter as cultural fields of practice, as opposed to fixed collections of facts and artifacts; 2) how we ensure, at a time of increasing interest and scrutiny from policymakers, that we continue to design for a variety of learning opportunities both across and within our institutions, thus sustaining rich, robust learning for more diverse and inclusive audiences; 3) how we develop better assessment questions, methodologies, and instrumentation that can more effectively address the contributions museums make to local learning ecologies. The authors conclude that, at this juncture, it is just as important for the education research community to learn from the practices of the museum field, as it is for the museum field to learn from the research. 相似文献
11.
The present study examines the role of communication in shaping norms and behaviors with significant personal and societal consequences. Based on primary socialization theory and the general theory of family communication, parental anti-substance-use socialization processes were hypothesized to influence early adolescents’ substance-use norms and behaviors. Using longitudinal data (N?=?1059), the results revealed that parent-adolescent prevention communication about substance use in the media and parental anti-substance-use injunctive norms were positively associated with early adolescents’ personal anti-substance-use norms, which, in turn, led to decreases in recent alcohol, cigarette, and marijuana use. It was also found that family expressiveness and structural traditionalism positively related to the hypothesized association between parental socialization processes and early adolescents’ norms and behaviors. 相似文献
12.
This study explores Facebook users’ management behaviors related to their—and their friends'—political communication via social media, utilizing the concepts of context collapse and self-presentation. A new two-factor measure of Facebook management was developed, pilot tested (N = 139) and implemented in a survey utilizing a national sample (N = 352) of individuals aged 18–29. Results indicated Facebook users are not generally engaging in the strategic management of political disclosures or the political content to which they are exposed. However, as network sizes increase, participants engage in more disclosure behaviors and make greater efforts to manage content exposure. Additionally, participants with strong political beliefs engage in more Facebook management behaviors, possibly indicating an effort to limit cognitive dissonance. 相似文献
13.
14.
Fabio Aiolli Riccardo Cardin Fabrizio Sebastiani Alessandro Sperduti 《Information Retrieval》2009,12(5):559-580
In many applicative contexts in which textual documents are labelled with thematic categories, a distinction is made between
the primary categories of a document, which represent the topics that are central to it, and its secondary categories, which
represent topics that the document only touches upon. We contend that this distinction, so far neglected in text categorization
research, is important and deserves to be explicitly tackled. The contribution of this paper is threefold. First, we propose
an evaluation measure for this preferential text categorization task, whereby different kinds of misclassifications involving either primary or secondary categories have a different impact
on effectiveness. Second, we establish several baseline results for this task on a well-known benchmark for patent classification
in which the distinction between primary and secondary categories is present; these results are obtained by reformulating
the preferential text categorization task in terms of well established classification problems, such as single and/or multi-label
multiclass classification; state-of-the-art learning technology such as SVMs and kernel-based methods are used. Third, we
improve on these results by using a recently proposed class of algorithms explicitly devised for learning from training data
expressed in preferential form, i.e., in the form “for document d
i
, category c′ is preferred to category c′′”; this allows us to distinguish between primary and secondary categories not only in the classification phase but also
in the learning phase, thus differentiating their impact on the classifiers to be generated. 相似文献
15.
Direct optimization of evaluation measures has become an important branch of learning to rank for information retrieval (IR).
Since IR evaluation measures are difficult to optimize due to their non-continuity and non-differentiability, most direct
optimization methods optimize some surrogate functions instead, which we call surrogate measures. A critical issue regarding
these methods is whether the optimization of the surrogate measures can really lead to the optimization of the original IR
evaluation measures. In this work, we perform formal analysis on this issue. We propose a concept named “tendency correlation”
to describe the relationship between a surrogate measure and its corresponding IR evaluation measure. We show that when a
surrogate measure has arbitrarily strong tendency correlation with an IR evaluation measure, the optimization of it will lead
to the effective optimization of the original IR evaluation measure. Then, we analyze the tendency correlations of the surrogate
measures optimized in a number of direct optimization methods. We prove that the surrogate measures in SoftRank and ApproxRank
can have arbitrarily strong tendency correlation with the original IR evaluation measures, regardless of the data distribution,
when some parameters are appropriately set. However, the surrogate measures in SVM
MAP
, DORM
NDCG
, PermuRank
MAP
, and SVM
NDCG
cannot have arbitrarily strong tendency correlation with the original IR evaluation measures on certain distributions of
data. Therefore SoftRank and ApproxRank are theoretically sounder than SVM
MAP
, DORM
NDCG
, PermuRank
MAP
, and SVM
NDCG
, and are expected to result in better ranking performances. Our theoretical findings can explain the experimental results
observed on public benchmark datasets. 相似文献
16.
William J. Brown 《亚洲交流杂志》2013,23(1):113-135
The study examines the prosocial effects of Hum Log (We People), India's first long‐running television soap opera. Hum Log was a prosocial television programme that was designed to promote women's status in Indian society. Regression analysis was used to measure the degree to which exposure to Hum Log affected viewers' (1) awareness of certain prosocial beliefs promoted by the series, (2) level of television dependency, (3) involvement with the characters of Hum Log, and (4) adherence to three prosocial beliefs promoted by Hum Log. Exposure to Hum Log was positively associated with viewers' awareness of the programme's prosocial messages, television dependency, and involvement with television characters in the series. Viewers who were more exposed to Hum Log were also more likely to believe in women's equality and women's freedom of choice, but not in family planning. The implications of these findings are discussed in terms of present and future research on the use of prosocial television programmes for development in Asia. 相似文献
17.
This study examines the mediating effects of information-processing strategies on the relationship between use of local news media, informational use of the Internet, and sources of social capital: interpersonal trust, reciprocity, and associational membership. Analyses of a telephone survey data (n = 546) of American adults show that even though local news media were influential, information-processing strategies were more powerful than attention in explaining learning from local news media about social norms at the individual level. These findings support the usefulness of the cognitive mediation model of information-processing behaviors in examining learning from local news media about social norms. Of the two strategies, elaborative processing played a more important role than active reflection in the mediating process. Informational use of the Internet had a significant and independent effect on associational membership, after demographic, structural anchoring, local media use, and information-processing measures were statistically controlled. 相似文献
18.
Suzan Verberne Hans van Halteren Daphne Theijssen Stephan Raaijmakers Lou Boves 《Information Retrieval》2011,14(2):107-132
In this paper, we evaluate a number of machine learning techniques for the task of ranking answers to why-questions. We use TF-IDF together with a set of 36 linguistically motivated features that characterize questions and answers.
We experiment with a number of machine learning techniques (among which several classifiers and regression techniques, Ranking
SVM and SVM
map
) in various settings. The purpose of the experiments is to assess how the different machine learning approaches can cope
with our highly imbalanced binary relevance data, with and without hyperparameter tuning. We find that with all machine learning
techniques, we can obtain an MRR score that is significantly above the TF-IDF baseline of 0.25 and not significantly lower
than the best score of 0.35. We provide an in-depth analysis of the effect of data imbalance and hyperparameter tuning, and
we relate our findings to previous research on learning to rank for Information Retrieval. 相似文献
19.
A growing number of Americans are living with chronic health conditions that require informal, ongoing care from family members who are also in the paid labor force. In this exploratory study, communication privacy management is used to make sense of chronic caregiving (N = 48–64) and noncaregiving (N = 174–178) employees’ disclosure preferences, intentions, and behaviors in the workplace. We find that workers in general anticipate that they would disclose to many individuals at work about their caregiving, but employees actually disclose much less information to far fewer people at work when they occupy the chronic caregiver role. For chronic caregivers, positive perceptions about coworker supportiveness predict increased disclosure behaviors. Finally, future research directions as employers, workers, and policy makers prepare for the complex challenges associated with negotiating paid work and unpaid chronic caregiving are provided. 相似文献