Search (1 results, page 1 of 1)

0.030010901 = product of:
  0.120043606 = sum of:
    0.120043606 = weight(_text_:assess in 2726) [ClassicSimilarity], result of:
      0.120043606 = score(doc=2726,freq=2.0), product of:
        0.36863554 = queryWeight, product of:
          5.8947687 = idf(docFreq=330, maxDocs=44218)
          0.062536046 = queryNorm
        0.32564306 = fieldWeight in 2726, product of:
          1.4142135 = tf(freq=2.0), with freq of:
            2.0 = termFreq=2.0
          5.8947687 = idf(docFreq=330, maxDocs=44218)
          0.0390625 = fieldNorm(doc=2726)
  0.25 = coord(1/4)

Abstract

This research investigates how people's perceptions of information retrieval (IR) systems, their perceptions of search tasks, and their perceptions of self-efficacy influence the amount of invested mental effort (AIME) they put into using two different IR systems: a Web search engine and a library system. It also explores the impact of mental effort on an end user's search experience. To assess AIME in online searching, two experiments were conducted using these methods: Experiment 1 relied on self-reports and Experiment 2 employed the dual-task technique. In both experiments, data were collected through search transaction logs, a pre-search background questionnaire, a post-search questionnaire and an interview. Important findings are these: (1) subjects invested greater mental effort searching a library system than searching the Web; (2) subjects put little effort into Web searching because of their high sense of self-efficacy in their searching ability and their perception of the easiness of the Web; (3) subjects did not recognize that putting mental effort into searching was something needed to improve the search results; and (4) data collected from multiple sources proved to be effective for assessing mental effort in online searching.