Search (588 results, page 1 of 30)

  • × theme_ss:"Benutzerstudien"
  1. Witt, M.: Survey on the use of the catalogue at the Mediatheque of the Cité des Sciences et de l'Industrie (CSI) (1993) 0.06
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    Abstract
    The library of the Cité des Sciences et de l'industrie attracts 4.000 visitors daily of whom 25% consult the GEAC system OPAC. Describes a 1992 survey consisting of online questions followed by an interview. The questionnaires were adapted from ones used in the UK and utilised OLIVE (Online Interactive Validation and Evaluation). While difficulties arose from users' inconsistency in their replies and failures to answer questions, it has become clear that subject access is unsatisfactory, sometimes because of mistyping by the searcher but also because of the vocabulary problems and lack of guidance in search strategies
    Source
    International cataloguing and bibliographic control. 22(1993) no.4, S.68-71
    Type
    a
  2. Jörgensen, C.; Liddy, E.D.: Information access or information anxiety? : an explanatory evaluation of book index features (1996) 0.05
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    Abstract
    The authors conducted a controlled user study in both print and electronic environments and present here a subset of results from index use in the print format
    Source
    Indexer. 20(1996) no.2, S.64-68
    Type
    a
  3. Atkinson, J.D.; Figueroa, M.: Information seeking behaviour of business students : a research study (1997) 0.04
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    Abstract
    Investigates library use and research behaviour of business students at California State University at San Marcos. A sample of 68 graduate and 91 undergraduate students were surveyed and observed for their behaviour in 3 conceptual domains: query formulation and task assignments, prereference process expectations and post reference process responses. Participant observations confirmed many of the student attitudes revealed in the survey
    Type
    a
  4. Monchaux, S.; Amadieu, F.; Chevalier, A.; Mariné, C.: Query strategies during information searching : effects of prior domain knowledge and complexity of the information problems to be solved (2015) 0.04
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    Date
    25. 1.2016 18:46:22
    Field
    Psychologie
    Type
    a
  5. Jacobson, T.E.; Newkirk, J.G.: ¬The effect of CD-ROM instruction on search operator use (1996) 0.03
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    Abstract
    Reports results of a survey of 675 CD-ROM users at State University of New York at Albany Libraries, obtaining data from both questionnaires and actual search strategies. The primary aim was to investigate the effect of prior user training or assistance on CD-ROM search strategy. A statistically significant but weak relationship was found between prior rtraining and level of search skill. Other measures such as user status, department affiliation of major, age, sex, and number of previous CD-ROM uses were compared to search skill. Only user status and department affiliation or major were significantly correlated to search skill. Concludes that additional research is needed on the effectiveness of various types of CD-ROM training
    Source
    College and research libraries. 57(1996) no.1, S.68-76
    Type
    a
  6. Ford, N.; Miller, D.; Moss, N.: Web search strategies and retrieval effectiveness : an empirical study (2002) 0.03
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    Abstract
    This paper reports the results of a study funded by the Arts and Humanities Research Board which sought to investigate links between Web search strategies and retrieval effectiveness. A total of 68 students, enrolled on masters programmes in librarianship, information management and information systems, searched for two topics using the AltaVista search engine. Logs of the resultant 341 queries, along with relevance judgements for over 4,000 retrieved items, were analysed using factor analysis and regression. The differing but complementary types and strengths of evidence produced by these two forms of analysis are discussed and presented. Retrieval effectiveness was associated positively with best-match searching and negatively with Boolean searching. The implications of these findings for Web searching are discussed.
    Type
    a
  7. Cleverley, P.H.; Burnett, S.; Muir, L.: Exploratory information searching in the enterprise : a study of user satisfaction and task performance (2017) 0.03
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    Abstract
    No prior research has been identified that investigates the causal factors for workplace exploratory search task performance. The impact of user, task, and environmental factors on user satisfaction and task performance was investigated through a mixed methods study with 26 experienced information professionals using enterprise search in an oil and gas enterprise. Some participants found 75% of high-value items, others found none, with an average of 27%. No association was found between self-reported search expertise and task performance, with a tendency for many participants to overestimate their search expertise. Successful searchers may have more accurate mental models of both search systems and the information space. Organizations may not have effective exploratory search task performance feedback loops, a lack of learning. This may be caused by management bias towards technology, not capability, a lack of systems thinking. Furthermore, organizations may not "know" they "don't know" their true level of search expertise, a lack of knowing. A metamodel is presented identifying the causal factors for workplace exploratory search task performance. Semistructured qualitative interviews with search staff from the defense, pharmaceutical, and aerospace sectors indicates the potential transferability of the finding that organizations may not know their search expertise levels.
    Source
    Journal of the Association for Information Science and Technology. 68(2017) no.1, S.62-76
    Type
    a
  8. Pisanski, J.; Zumer, M.: User verification of the FRBR conceptual model (2012) 0.03
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    Abstract
    Purpose - This paper aims to build on of a previous study of mental models of the bibliographic universe, which found that the Functional Requirements for Bibliographic Records (FRBR) conceptual model is intuitive. Design/methodology/approach - A total of 120 participants were presented with a list of bibliographic entities and six graphs each. They were asked to choose the graph they thought best represented the relationships between entities described. Findings - The graph based on the FRBR model was chosen by more than half of the participants and none of the alternatives stood out. This gives further indication that FRBR is an appropriate model of the bibliographic universe from users' standpoint. Research limitations/implications - The study only looked at the textual part of the bibliographic universe. Further research is needed for other types of materials. Practical implications - This research suggests that there should be a more positive attitude towards implementation of FRBR-based catalogues. Originality/value - This is one of only a handful of user studies relating to FRBR, which looks to be the backbone of catalogues for years to come. As such, the results should be of interest to everybody involved with catalogues, from cataloguers to the end-users.
    Source
    Journal of documentation. 68(2012) no.4, S.582-592
    Type
    a
  9. Zhitomirsky-Geffet, M.; Bar-Ilan, J.; Levene, M.: Analysis of change in users' assessment of search results over time (2017) 0.03
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    Abstract
    We present the first systematic study of the influence of time on user judgements for rankings and relevance grades of web search engine results. The goal of this study is to evaluate the change in user assessment of search results and explore how users' judgements change. To this end, we conducted a large-scale user study with 86 participants who evaluated 2 different queries and 4 diverse result sets twice with an interval of 2 months. To analyze the results we investigate whether 2 types of patterns of user behavior from the theory of categorical thinking hold for the case of evaluation of search results: (a) coarseness and (b) locality. To quantify these patterns we devised 2 new measures of change in user judgements and distinguish between local (when users swap between close ranks and relevance values) and nonlocal changes. Two types of judgements were considered in this study: (a) relevance on a 4-point scale, and (b) ranking on a 10-point scale without ties. We found that users tend to change their judgements of the results over time in about 50% of cases for relevance and in 85% of cases for ranking. However, the majority of these changes were local.
    Source
    Journal of the Association for Information Science and Technology. 68(2017) no.5, S.1137-1148
    Type
    a
  10. Unkel, J.; Haas, A.: ¬The effects of credibility cues on the selection of search engine results (2017) 0.02
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    Source
    Journal of the Association for Information Science and Technology. 68(2017) no.8, S.1850-1862
    Type
    a
  11. Scholle, U.: Kann ich Ihnen behilflich sein? : Erhebung am zentralen Auskunftsplatz der ULB Münster (2000) 0.02
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    Date
    22. 1.2000 17:52:11
    Type
    a
  12. Branch, J.L.: Investigating the information-seeking process of adolescents : the value of using think alouds and think afters (2000) 0.02
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    Source
    Library and information science research. 22(2000) no.4, S.371-382
    Type
    a
  13. Yi, K.; Beheshti, J.; Cole, C.; Leide, J.E.; Large, A.: User search behavior of domain-specific information retrieval systems : an analysis of the query logs from PsycINFO and ABC-Clio's Historical Abstracts/America: History and Life (2006) 0.02
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    Abstract
    The authors report the findings of a study that analyzes and compares the query logs of PsycINFO for psychology and the two history databases of ABC-Clio: Historical Abstracts and America: History and Life to establish the sociological nature of information need, searching, and seeking in history versus psychology. Two problems are addressed: (a) What level of query log analysis - by individual query terms, by co-occurrence of word pairs, or by multiword terms (MWTs) - best serves as data for categorizing the queries to these two subject-bound databases; and (b) how can the differences in the nature of the queries to history versus psychology databases aid in our understanding of user search behavior and the information needs of their respective users. The authors conclude that MWTs provide the most effective snapshot of user searching behavior for query categorization. The MWTs to ABC-Clio indicate specific instances of historical events, people, and regions, whereas the MWTs to PsycINFO indicate concepts roughly equivalent to descriptors used by PsycINFO's own classification scheme. The average length of queries is 3.16 terms for PsycINFO and 3.42 for ABC-Clio, which breaks from findings for other reference and scholarly search engine studies, bringing query length closer in line to findings for general Web search engines like Excite.
    Field
    Psychologie
    Type
    a
  14. Yoo, E.-Y.; Robbins, L.S.: Understanding middle-aged women's health information seeking on the web : a theoretical approach (2008) 0.02
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    Date
    9. 2.2008 17:52:22
    Type
    a
  15. Cole, C.; Lin, Y.; Leide, J.; Large, A.; Beheshti, J.: ¬A classification of mental models of undergraduates seeking information for a course essay in history and psychology : preliminary investigations into aligning their mental models with online thesauri (2007) 0.01
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    Abstract
    The article reports a field study which examined the mental models of 80 undergraduates seeking information for either a history or psychology course essay when they were in an early, exploration stage of researching their essay. This group is presently at a disadvantage when using thesaurus-type schemes in indexes and online search engines because there is a disconnect between how domain novice users of IR systems represent a topic space and how this space is represented in the standard IR system thesaurus. The study attempted to (a) ascertain the coding language used by the 80 undergraduates in the study to mentally represent their topic and then (b) align the mental models with the hierarchical structure found in many thesauri. The intervention focused the undergraduates' thinking about their topic from a topic statement to a thesis statement. The undergraduates were asked to produce three mental model diagrams for their real-life course essay at the beginning, middle, and end of the interview, for a total of 240 mental model diagrams, from which we created a 12-category mental model classification scheme. Findings indicate that at the end of the intervention, (a) the percentage of vertical mental models increased from 24 to 35% of all mental models; but that (b) 3rd-year students had fewer vertical mental models than did 1st-year undergraduates in the study, which is counterintuitive. The results indicate that there is justification for pursuing our research based on the hypothesis that rotating a domain novice's mental model into a vertical position would make it easier for him or her to cognitively connect with the thesaurus's hierarchical representation of the topic area.
    Field
    Psychologie
    Type
    a
  16. Tomney, H.; Burton, P.F.: Electronic journals : a case study of usage and attitudes among academics (1998) 0.01
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    Abstract
    Reports results of a questionnaire survey to assess the attitudes of scholarly users towards electronic journals and examines the current level of use of these publications by university academics in 2 departments in each of 5 faculties of a UK university
    Date
    22. 5.1999 19:07:29
    Type
    a
  17. Kaske, N.K.: ¬A comparative study of subject searching in an OPAC among branch libraries of a university library system (1988) 0.01
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    Abstract
    The degree of variability in the percentage of subject searching in an online public access catalog (OPAC) among branch libraries of one university was studied. A full semester's worth of transactions was analyzed, not sampled. The time units used were hour of the day, day of the week, and week of the semester. The findings show that subject searching varies from a low of 22% to a high of 74% over the hours of a day. Variability for the days of the week ranged from 17% to 64%, and for the weeks of the semester variability ranged from 12% to 70%. Valuable management information on the utilization of the OPAC within each brach library and among all the branch libraries is provided through numerous charts and graphs.
    Type
    a
  18. Stokmans, M.; Oomens, A.: Meer grasduinen door genreplaatsing? : genre- of alfabetische plaatsing: onderzoek naar verschillen in gebruikersgedrag (1997) 0.01
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    Abstract
    As part of her doctoral dissertation at Brabant Catholic University in the Netherlands A. Oomens recently held a survey to determine the relative merits of author and subject arrangements for non fiction collections. Although users browsing through the collections were more likely to find material of interest via a subject arrangement, those looking for a particular title were best served by an author arrangement. All users interviewed preferred the arrangement with which they were familiar
    Footnote
    Übers. d. Titels: Subject arrangement assists browsing?: subject versus alphabetical arrangement: a study in differences in user behavious
    Source
    BibliotheekBlad. 1(1997) no.21, S.22-23
    Type
    a
  19. Moulaison, H.L.: OPAC queries at a medium-sized academic library : a transaction log analysis (2008) 0.01
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    Abstract
    Patron queries at a four-year comprehensive college's online public access catalog were examined via transaction logs from March 2007. Three representative days were isolated for a more detailed examination of search characteristics. The results show that library users employed an average of one to three terms in a search, did not use Boolean operators, and made use of limits one-tenth of the time. Failed queries remained problematic, as a full one-third of searches resulted in zero hits. Implications and recommendations for improvements in the online public access catalog are discussed.
    Date
    10. 9.2000 17:38:22
    Type
    a
  20. Gremett, P.: Utilizing a user's context to improve search results (2006) 0.01
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    Abstract
    Usability evaluations and observations of users shopping at Amazon.com (http://www.amazon.com) revealed some interesting user behaviors. The mixed behavior patterns were leveraged to create an interface for an e-commerce product. The author describes some design practices for providing a scoped search interface for an e-commerce site.
    Date
    22. 7.2006 18:17:44
    Type
    a

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