Search (4 results, page 1 of 1)

0.012498461 = product of:
  0.024996921 = sum of:
    0.024996921 = product of:
      0.049993843 = sum of:
        0.049993843 = weight(_text_:i in 6005) [ClassicSimilarity], result of:
          0.049993843 = score(doc=6005,freq=2.0), product of:
            0.17138503 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.045439374 = queryNorm
            0.29170483 = fieldWeight in 6005, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.0546875 = fieldNorm(doc=6005)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Type

i

0.010773714 = product of:
  0.021547427 = sum of:
    0.021547427 = product of:
      0.043094855 = sum of:
        0.043094855 = weight(_text_:22 in 3018) [ClassicSimilarity], result of:
          0.043094855 = score(doc=3018,freq=2.0), product of:
            0.15912095 = queryWeight, product of:
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.045439374 = queryNorm
            0.2708308 = fieldWeight in 3018, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.5018296 = idf(docFreq=3622, maxDocs=44218)
              0.0546875 = fieldNorm(doc=3018)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Date

22. 2.2008 14:21:53

0.0071419775 = product of:
  0.014283955 = sum of:
    0.014283955 = product of:
      0.02856791 = sum of:
        0.02856791 = weight(_text_:i in 1795) [ClassicSimilarity], result of:
          0.02856791 = score(doc=1795,freq=8.0), product of:
            0.17138503 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.045439374 = queryNorm
            0.16668847 = fieldWeight in 1795, product of:
              2.828427 = tf(freq=8.0), with freq of:
                8.0 = termFreq=8.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.015625 = fieldNorm(doc=1795)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Footnote

The economic opportunity divide is predicated an the hypothesis that there has, indeed, been a major shift in opportunities driven by changes in the information environment. The authors document this paradigm shift well with arguments from the political and economic right and left. This chapter might be described as an "attitudinal" chapter. The authors are concerned here with the perceptions of their respondents of their information skills and skill levels with their economic outlook and opportunities. Technological skills and economic opportunities are correlated, one finds, in the minds of all across all ages, genders, races, ethnicities, and income levels. African Americans in particular are ". . attuned to the use of technology for economic opportunity" (p. 80). The fourth divide is the democratic divide. The Internet may increase political participation, the authors posit, but only among groups predisposed to participate and perhaps among those with the skills necessary to take advantage of the electronic environment (p. 86). Certainly the Web has played an important role in disseminating and distributing political messages and in some cases in political fund raising. But by the analysis here, we must conclude that the message does not reach everyone equally. Thus, the Internet may widen the political participation gap rather than narrow it. The book has one major, perhaps fatal, flaw: its methodology and statistical application. The book draws upon a survey performed for the authors in June and July 2001 by the Kent State University's Computer Assisted Telephone Interviewing (CATI) lab (pp. 7-9). CATI employed a survey protocol provided to the reader as Appendix 2. An examination of the questionnaire reveals that all questions yield either nominal or ordinal responses, including the income variable (pp. 9-10). Nevertheless, Mossberger, Tolbert, and Stansbury performed a series of multiple regression analyses (reported in a series of tables in Appendix 1) utilizing these data. Regression analysis requires interval/ratio data in order to be valid although nominal and ordinal data can be incorporated by building dichotomous dummy variables. Perhaps Mossberger, Tolbert, and Stansbury utilized dummy variables; but 1 do not find that discussed. Moreover, 1 would question a multiple regression made up completely of dichotomous dummy variables. I come away from Virtual Inequality with mixed feelings. It is useful to think of the digital divide as more than one phenomenon. The four divides that Mossberger, Tolbert, and Stansbury offeraccess, skills, economic opportunity, and democratic-are useful as a point of departure and debate. No doubt, other divides will be identified and documented. This book will lead the way. Second, without question, Mossberger, Tolbert, and Stansbury provide us with an extremely well-documented, -written, and -argued work. Third, the authors are to be commended for the multidisciplinarity of their work. Would that we could see more like it. My reservations about their methodological approach, however, hang over this review like a shroud."
Anmerkung des Rezensenten in JASIST 55(2004) no.11, S.1024: "After reflecting an a requestfrom the authors of the reviewed book, 1 find that I did indeed err in my criticism of their methodology. The work's fault lies not with the methodology but rather with the discussion and explanation provided for the methodology. The authors do offer brief methodological explanation and justification in endnotes and appendices but are less clear in the book's text. I apologize to both the readers of the review and the authors for misinterpreting the text. For the authors' part, a methodology chapter would have been welcome. I am pleased to put right this misinterpretation that cast a shadow over an otherwise fine work."

0.0035709888 = product of:
  0.0071419775 = sum of:
    0.0071419775 = product of:
      0.014283955 = sum of:
        0.014283955 = weight(_text_:i in 2924) [ClassicSimilarity], result of:
          0.014283955 = score(doc=2924,freq=2.0), product of:
            0.17138503 = queryWeight, product of:
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.045439374 = queryNorm
            0.083344236 = fieldWeight in 2924, product of:
              1.4142135 = tf(freq=2.0), with freq of:
                2.0 = termFreq=2.0
              3.7717297 = idf(docFreq=2765, maxDocs=44218)
              0.015625 = fieldNorm(doc=2924)
      0.5 = coord(1/2)
  0.5 = coord(1/2)

Footnote

Weitere Rez. in: New Library World 108(2007) nos.3/4, S.190-191 (K.V. Trickey): "Vanda has provided a very useful work that will enable any reader who is prepared to follow her instruction to produce a thesaurus that will be a quality language-based subject access tool that will make the task of information retrieval easier and more effective. Once again I express my gratitude to Vanda for producing another excellent book." - Electronic Library 24(2006) no.6, S.866-867 (A.G. Smith): "Essential thesaurus construction is an ideal instructional text, with clear bullet point summaries at the ends of sections, and relevant and up to date references, putting thesauri in context with the general theory of information retrieval. But it will also be a valuable reference for any information professional developing or using a controlled vocabulary." - KO 33(2006) no.4, S.215-216 (M.P. Satija)