Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

    We have a manual that explains all the features 

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Spotlight on the presenter : a study into presentations of conference papers with PowerPoint
Hertz, B. - \ 2015
Wageningen University. Promotor(en): Cees van Woerkum, co-promotor(en): P. Kerkhof. - Wageningen : Wageningen University - ISBN 9789462573192 - 193
publiceren - informatieverspreiding - communicatievaardigheden - verbale communicatie - toepassingen - wetenschappers - openbare redes - publishing - diffusion of information - communication skills - verbal communication - applications - scientists - public speeches


1. Introduction

PowerPoint is the most widely used presentation software tool. As of 2012, PowerPoint had more than 200 million presenters worldwide. Presenters all over the world use the program. Some use it for university teaching, others for business meetings and some even use PowerPoint to deliver a sermon. But the program doesn’t always seem to be used to the satisfaction of the audience. In many critical articles, presenters are accused of using too many words on their slides and too often looking at the projection instead of keeping eye contact with the audience. Some authors also criticize the program itself for what they see as a negative influence on presentations.

If these critical observations are valid, then PowerPoint presentations don’t conform to the advice given in instruction books nor to the outcome of research into human information processing. This advice usually proposes the use of minimal text on slides, and instead using pictures or other graphics. This would help the audience process the information. In addition, the instruction book stress the importance of maintaining eye contact with the audience. It is remarkable that the program is so frequently used, while it is so often criticized for what seem to be valid reasons.

There has been some research into PowerPoint use in the classroom, investigating the effects on student appreciation and grades. Much of this research does not describe how nor why the program is used in these situations. The critical articles on PowerPoint are mainly based on personal experiences and not on research. So there has not been much empirical evidence that presenters actually do use too many words or that they look too often at the projection, nor has the influence of PowerPoint on the presentation been established. In addition it is not clear why so many presenters don’t seem to follow the advice in instruction books, which say to use a minimum amount of text on a slide and which stress the importance of maintaining eye contact with the audience.

This dissertation focuses on the role of the presenter. It investigates how presenters use PowerPoint and if they are guilty of the negative behavior mentioned above. If they are guilty, what are the reasons they use PowerPoint in this way? Some authors have suggested that presenters use PowerPoint not only for the benefit of the audience, but that they also use the words on the slides as speaking notes. In particular, presenters suffering from speaking anxiety might be afraid of being “lost for words” or forgetting the structure of their presentation. They would then be able to turn to the text on the slides as support. This dissertation will investigate the possible role of speaking anxiety and how it affects PowerPoint usage.

The research looks at the use of PowerPoint by scholars presenting conference papers. Conferences play a central role in the network of scientific communication and are important for a researcher’s profile. The majority of scholars present their work at conferences several times a year and these presentations can be demanding and challenging. In contrast with writing and publishing a paper, conferences allow scholars to interact with an audience of their peers who will evaluate their work by posing critical questions. Challenging exposure of this kind might well engender or increase speaking anxiety in the presenter.

Clearly there is a need for empirical research on PowerPoint use, research focused on the program’s use in delivering scholarly presentations. Questions to be answered by the research include:

• How do scholars use PowerPoint?

• Why do scholars use PowerPoint in the way that they do?
• Does speaking anxiety influence the way that scholars use PowerPoint?

• Does PowerPoint influence the quality of presentations?

This thesis studies the use of PowerPoint in a real life setting and looks at presentations as being complex interactions among slides, presenter behavior and audience. An overview of the different elements regarding the presenter, his/her background, the presentation, the presenter’s behavior and the PowerPoint program itself can be found in Figure I.

2. Method

There is a literature review and three empirical studies. The literature review compares the program with its predecessors and describes the software, slide design and the user’s presentation behavior, focusing on the interaction of these elements. Instruction books and articles on PowerPoint, criticism and empirical research on the topics of slide design, presentation behavior and its effects on audiences are discussed.

In the first empirical study, fifteen scientific presentations of language scientists are analyzed on the use of text and pictures on the slides. The physical and verbal behavior of the presenter has also been studied, specifically investigating how often presenters look at the projection and if they verbally introduce a slide. Furthermore the relation between the slides and the presenter’s behavior has been analyzed.

The second empirical study employs interviews with scholars about their reasons for PowerPoint use. It distinguishes between first-year PhD students (beginners) and advanced, prize winning scholars from different disciplines of science (humanities, physical science, social science and medical science). Special attention is given to the acquisition of PowerPoint skills.

The third study consists of a survey using social scientists and focuses on the influence of speaking anxiety on the use of PowerPoint. It tests if speaking anxiety causes presenters to spend more time on preparing and rehearsing the presentation, and analyzes the possible relationships among speaking anxiety, time spent on preparing and rehearsing a presentation, and the use of words on a slide.

3. Results

Certain characteristics of PowerPoint such as its default-settings and the ability to use slides on the Internet and as handouts may tempt the presenter to increase the amount of text on slides. These choices, however, are not necessary, and are decisions made by the presenter. The scholars in our study used a relatively large number of words when compared to what instruction books advise (a maximum of 20 to 36 words per slide, depending on the author). An average number of 35 (language scientists) and 50 (social scientists) per slide was found. Many of the scholars used a small number of pictures (depending on the scientific discipline).

Presenters look on average 73 times at the projection during their presentation of 20 minutes (more than three times a minute). Looking at the projection to indicate a new slide or ‘new’ elements on a slide seems to be characteristic for the use of PowerPoint. Presenters turn away from the audience and break eye-contact, something which is considered negative in making presentations. The critics of PowerPoint clearly have a point when they complain about the high number of words on the slides and about presenters looking towards the projection.

There are differences, however, between beginning and advanced presenters. Beginners use more than twice as many words per minute than advanced presenters and only half as many pictures. In maintaining contact with the audience there is also a difference between beginning and advanced scholars. Advanced presenters often like to present without the use of PowerPoint because this allows more contact with their audience.

Some scholars say that they use the text on the slides as speaking notes. Many have also said that they use pictures almost exclusively for the benefit of the audience. Beginners probably use more text and fewer pictures because they suffer more from speaking anxiety than advanced presenters. They might be more concerned with their own performance. Advanced scholars on the other hand have indicated that they have their audience in mind when preparing and delivering a presentation. Speaking anxiety, in an indirect way, also plays a role in the number of words used on the slides. Anxious presenters spend more time rehearsing the presentation; this is related to the number of words used on the slides.

Scholars often seem to lack knowledge about how to use PowerPoint in an appropriate manner. Instead of receiving training in using PowerPoint, they learn to present with the program by experimenting and by observing colleagues and designing slides on the basis of common sense, which is often against the advice in instruction books. Moreover some scholars erroneously think that PowerPoint makes rhetorical skills redundant.

4. Conclusions

The concept of “performance” seems to be appropriate in describing all the elements that matter in the presentation itself: speech, animated slides, working with projections, physical motion and maintaining eye contact with the audience. Presenters need an understanding of how audiences process different sources of information, and they must then be able to orchestrate their presentation skills in appropriate ways. If we look at PowerPoint presentations as performances, we can see that presenters must be designers, actors and directors at the same time.

It is clear that PowerPoint elicits behavior that is not always consistent with what is considered to be good presentation form. This, however, is not the fault of the program. The apparent user friendliness of PowerPoint might disguise the fact that presentations with the program are in fact complex. It is not PowerPoint itself which causes some bad presentations, but the choices and behavior of the presenters who must deal with all the new possibilities and requirements inherent in this program.

Presenters should be educated in appropriate slide design. They also should be taught how to direct the attention of the audience. It is not sufficient to teach presenters how they should design and present their slides, however, if they aren’t helped to learn how to reduce their speaking anxiety in ways other than using the PowerPoint slides as support. This thesis suggests ways of teaching these skills

Meeliften als auteur
Kleis, R. ; Vijver, C.A.D.M. van de; Koelmans, A.A. ; Candel, J.J.L. ; Weijers, D. ; Visser, R.G.F. ; Arendonk, J.A.M. van - \ 2015
Resource: nieuwssite voor studenten en medewerkers van Wageningen UR 9 (2015)13. - ISSN 1389-7756 - p. 18 - 21.
publiceren - auteurs - onderzoekers - richtlijnen (guidelines) - publishing - authors - research workers - guidelines
Het is een van de grootste ergernissen van promovendi: co-auteurs die meeliften op jouw artikel. Collega’s, begeleiders of promotoren die weinig hebben bijgedragen, maar toch een graantje meepikken. Kan dat zomaar? Een taai en lastig probleem.
Het nieuwe meten
Ramaker, R. ; Khoury, C.K. - \ 2015
Resource: nieuwssite voor studenten en medewerkers van Wageningen UR 9 (2015)15. - ISSN 1389-7756 - p. 18 - 19.
publicaties - publiceren - publiciteit - verspreiding van onderzoek - statistiek - onderzoekers - publications - publishing - publicity - diffusion of research - statistics - research workers
Al decennialang wordt wetenschappelijke kwaliteit en invloed op dezelfde manier gemeten. Maar deugt die methode nog wel in een wereld die door digitalisering en social media ingrijpend is veranderd? Altmetrics biedt een alternatief.
Publiceren in het geniep
Gerritsma, Wouter - \ 2014
publishing - writing - forgery - scientists - ethics - publications
The unofficial guide for authors : from research design to publication
Hengl, T. ; Gould, M. ; Gerritsma, W. - \ 2011
Wageningen : - ISBN 9789081774109 - 149
schrijven - schrijfvaardigheden - publiceren - wetenschappelijk onderzoek - writing - writing skills - publishing - scientific research
Most scientific journals provide guidelines for authors - how to format references and prepare artwork, how many copies of the paper to submit and to which address. However, most official guidelines say little about how you should design and produce your paper and the chances that it will be accepted. This book provides a comprehensive but focused guide to producing scientific information - from research design to publication. It provides practical tips and answers to some of the most frequently asked questions: Why do we publish in the first place? What is OA publishing and why bother about it? What is the h-index? What is a Journal Impact Factor and does it matter? How can I increase my research production efficiency? Why should I use OS software tools for academic work? How can I produce graphics that will impress? How can I brainstorm good titles? How can I select a suitable journal and where can I find out more about it? How can I get into the reviewers' heads? This is an Open Access publication.
Publishing in soil science: Historical developments and current trends
Hartemink, A.E. - \ 2002
Vienna : International Union of Soil Sciences - ISBN 9066720751 - 194
bodemkunde - publicaties - onderzoek - geschiedenis - publiceren - soil science - publications - research - history - publishing
Developments and trends in soil science: 100 volumes of Geoderma (1967-2001)
Hartemink, A.E. ; McBratney, A.B. ; Cattle, J.A. - \ 2001
Geoderma 100 (2001)3-4. - ISSN 0016-7061 - p. 217 - 268.
bodemkunde - ontwikkeling - wetenschappelijk onderzoek - publiceren - soil science - development - scientific research - publishing - journal pochvovedenie - world
Between September 1967 and March 2001, Geoderma published 100 volumes containing 2079 papers covering 31,637 pages and filling 191 cm of shelf space. No doubt that is a lot of paper, but what is in it? This paper starts with a brief history of the journal and an overview of editors and a geographic breakdown of the editorial board. The contents of the 100 volumes is presented including an overview of the geographic origin of the research and authors, and an analysis of soil science subjects over time. Furthermore, the impact factor and the most frequently papers are discussed. The average length of the papers increased from 12.9 pages in the 1970s to 16.4 pages in the 1990s. Number of authors per paper increased faster so the pages per author have decreased over time. European authors account for about half of the papers but less than 40% of the research was conducted in Europe. The number of authors from North America has increased over the years and about one-fifth of the papers is from research in North America. More than half of the research reported in Geoderma was conducted in the temperate regions, whereas the tropics and subtropics account for about 30% of the papers. In the 1980s, 53% of the papers were descriptive but it decreased to 31% in the 1990s with a higher percentage of papers focussing on methodology. One of the intriguing trends is that 29% of the papers in the 1970s were based on field studies whereas only 18% of the papers in the 1990s were field based. Laboratory studies decreased from 60% in the 1970s to 49% in the 1990s. Over the same period, desk studies increased from 11% to 33% of the published papers. The majority of the papers in Geoderma has had no strong focus and only in recent years papers had an increased focus (i.e. agriculture, environment etc.). There has been a strong increase in soil physics papers whereas the share of soil chemistry steadily declined over time. Typical pedological papers cover about 30% of the journal and little change was found with time, except for the advent of papers in pedometrics. Papers on soil mineralogy have sharply declined from 25% in the 1980s to less than 10% in the 1990s. Over the same period, a doubling in the number of papers on soil and environment occurred. Papers containing information on soil classification increased from 30% in the early 1970s to around 50% in the late 1990s. Alfisols had received most attention followed by Inceptisols. Papers are based on a larger amount of soil samples and in recent years an increasing number of papers are based on existing data. The impact factor of Geoderma has steadily increased since the mid 1970s and in particular in the late 1990s. This review has shown important trends in Geoderma papers that likely reflect some of the major changes that have occurred in soil science as a whole.
75 years The International Society of Soil Science
Baren, J.H.V. van; Hartemink, A.E. ; Tinker, P.B. - \ 2000
Geoderma 96 (2000)1-2. - ISSN 0016-7061 - p. 1 - 18.
bodemkunde - internationale samenwerking - geschiedenis - wereld - cartografie - publiceren - soil science - international cooperation - mapping - history - world - publishing
This paper describes the history of the International Society of Soil Science (ISSS), including a regional analysis of memberships and an overview of the ISSS main activities. The ISSS was founded in 1924 by, mainly, European agro-pedologists who were interested in establishing standardised methods of soil analysis and soil classification. In total, 16 international congresses were organized by the ISSS in the past 75 years and eight of these congresses were held in Europe. Commissions, Subcommissions, Working Groups and Standing Committees have been established, which deal with virtually all aspects of soil research and management. Number of members increased from around 550 after WWII to over 7000 in 1998. Almost 60% of the members are from North America and Western Europe. Large differences were found in the number of soil scientists and ISSS/International Union of Soil Sciences (IUSS) members in relation to the total population and agricultural land area. One of the important contributions of the ISSS has been the Soil Map of the World, which was prepared in the 1960s and 1970s. The ISSS has also been active in dissemination and publication of scientific results through periodicals and cooperating journals. In 1998, the ISSS was restructured into the IUSS following upon its admission as a Union member of the International Council for Science (ICSU) in 1993
Handleiding rapporteren en publiceren
Groot, M.N. de - \ 1988
Den Haag : LEI (Interne nota / Landbouw-Economisch Instituut 363) - 91
gegevens verzamelen - publicaties - rapporten - schrijven - publiceren - wetenschap - data collection - publications - reports - writing - publishing - science
Publiceren op een onderzoeksinstelling als het Instituut voor Cultuurtechniek en Waterhuishouding
Schoots, A.F.M. ; Cate, B. ten - \ 1988
Wageningen : ICW (Nota / Instituut voor Cultuurtechniek en Waterhuishouding 1893) - 109
proefstations - nederland - organisaties - onderzoek - onderzoeksinstituten - technieken - schrijven - gelderland - publiceren - wetenschap - veluwe - experimental stations - netherlands - organizations - research - research institutes - techniques - writing - publishing - science
D.J.M. : uitgeg. ter gel. van het bereiken van de pensioengerechtigde leeftijd van ir. D.J. Maltha
Anonymous, - \ 1973
Wageningen : Pudoc - 67
landbouw - biografieën - documentatie - informatie - onderzoek - technieken - schrijven - boeken - winkels - publicaties - productie - methodologie - wetenschap - publiceren - agriculture - biographies - documentation - information - research - techniques - writing - books - shops - publications - production - methodology - science - publishing
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