1,720,967 research outputs found
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Data Quality in Web and App Diaries: A Person-Level Comparison
No full textThe time-use diary is a complex and burdensome data collection instrument. This can negatively affect data quality, leading to less detailed and/or inaccurate activity reporting as the surveyed time period unfolds. However, it can also be argued that data quality may actually improve over time as respondents become more familiar with the diary instrument format and more interested in the diary task. These competing hypotheses have only been partially tested on data from paper and telephone-administered diaries, which are traditionally used for large-scale data collection. Less is known about self-administered modes that make use of new technologies, despite their increasing popularity among researchers. This research note rectifies this omission by comparing diary quality in self-administered web and app diaries, drawing on data from the Millennium Cohort Study. We construct a person-level data quality typology, using information on missing data, episode changes, and reporting of key daily activity domains. Results show significant mode differences on person-level data quality, after controlling for characteristics known to influence diary mode selection and data quality. App diarists were more likely to return two diaries of inconsistent quality. Both respondent fatigue and improvement of completion over time appear more common among app diarists
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
Adolescent Disability, Post-16 Destinations, and Early Socioeconomic Attainment: Initial Evidence from Next Steps
No full textRecent decades have witnessed a dramatic increase in the prevalence of adolescent disability. However, research on the life-course transitions and trajectories of disabled adolescents remains sparse. This working paper addresses the lack of longitudinal evidence surrounding school-to-work transitions of disabled young people in England. We analyse longitudinal data from Next Steps in order to provide a descriptive analysis of post- 16 transitions and early socioeconomic attainment of disabled young people in England. Our analysis moves beyond existing studies by examining the whole range of post-16 destinations, and by exploring variation between different disability categories wherever possible. We also examine whether disability differentials in post-16 destinations and economic activity in early adulthood vary by social class, ethnicity, and gender, highlighting opportunities for intersectional analyses. Overall, our results show substantial disability differentials in post-16 destinations. We find that disabled young people are less likely to stay in post-16 education and more likely to experience unemployment compared to non- disabled peers. Results reveal inequalities in the type of post-16 education young people follow too, with disabled cohort members more likely to be in general Further Education colleges and less likely to attend school sixth forms and sixth form colleges, as well as university, compared to students with no long-standing limiting conditions and/or learning difficulties. We find pronounced disability gaps in young people’s main activity at age 25, documenting variations by other social divisions. We also outline avenues for future research on adolescent disability and social inequality
Dispelling the Myths Behind First-author Citation Counts
Full text linkWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Identifying the Third Agers: An Analysis of British Retirees' Leisure Pursuits
No full text Despite the recent theoretical focus on the emergence of the Third Age as a period of fulfilment and an ongoing engagement with an active leisure lifestyle, there is a dearth of quantitative studies on how older people spend their time. Few studies of later life capitalise on time-use surveys, which constitute the most widely employed and accurate methodology for collecting data on everyday life. This article analyses data from the 2000 UK Time Use Survey in order to operationalise the concept of the Third Age and test theoretical propositions regarding the irrelevance of social divisions in the formation of an active leisure lifestyle after retirement. The analysis focuses on a subsample of 1615 people over the age of 64. An index of active leisure activities is constructed in order to estimate the proportion of third agers amongst British retirees. Logistic regression models are specified to examine the relative influence of socio-demographic characteristics on the probability of a person being a third ager. Strong effects of structural factors and health are found, which do not support arguments suggesting a minor influence of social context in lifestyle choices after retirement. ‘Active’ ageing appears to be the province of those who are culturally and materially advantaged, and it is the healthy, educated, upper-class and middle-class men that are more likely to engage in a Third Age leisure lifestyle. </jats:p
- …
