Document (#30229)

Author

Bilal, D.

Title

Children's use of the Yahooligans! Web search engine : III. Cognitive and physical behaviors on fully self-generated search tasks

Source

Journal of the American Society for Information Science and technology. 53(2002) no.13, S.1170-1183

Year

2002

Abstract

Bilal, in this third part of her Yahooligans! study looks at children's performance with self-generated search tasks, as compared to previously assigned search tasks looking for differences in success, cognitive behavior, physical behavior, and task preference. Lotus ScreenCam was used to record interactions and post search interviews to record impressions. The subjects, the same 22 seventh grade children in the previous studies, generated topics of interest that were mediated with the researcher into more specific topics where necessary. Fifteen usable sessions form the basis of the study. Eleven children were successful in finding information, a rate of 73% compared to 69% in assigned research questions, and 50% in assigned fact-finding questions. Eighty-seven percent began using one or two keyword searches. Spelling was a problem. Successful children made fewer keyword searches and the number of search moves averaged 5.5 as compared to 2.4 on the research oriented task and 3.49 on the factual. Backtracking and looping were common. The self-generated task was preferred by 47% of the subjects.

Theme

Suchmaschinen
Benutzerstudien

Object

Yahooligans!

Similar documents (author)

1. Bilal, D.: Children's use of the Yahooligans! Web search engine : I. Cognitive, physical, and affective behaviors on fact-based search tasks (2000) 5.66

   5.664006 = sum of:
     5.664006 = weight(author_txt:bilal in 5776) [ClassicSimilarity], result of:
       5.664006 = fieldWeight in 5776, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.625 = fieldNorm(doc=5776)
   

2. Bilal, D.: Children's use of the Yahooligans! Web search engine : II. Cognitive and physical behaviors on research tasks (2001) 5.66

   5.664006 = sum of:
     5.664006 = weight(author_txt:bilal in 6583) [ClassicSimilarity], result of:
       5.664006 = fieldWeight in 6583, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.625 = fieldNorm(doc=6583)
   

3. Bilal, D.: Web search engines for children : a comparative study and performance evaluation of Yahooligans!, AskJeeves for Kids, and Super Snooper (1999) 5.66

   5.664006 = sum of:
     5.664006 = weight(author_txt:bilal in 544) [ClassicSimilarity], result of:
       5.664006 = fieldWeight in 544, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.625 = fieldNorm(doc=544)
   

4. Bilal, D.: Percentile ranks and the integrated impact indicator (I3) (2012) 5.66

   5.664006 = sum of:
     5.664006 = weight(author_txt:bilal in 1392) [ClassicSimilarity], result of:
       5.664006 = fieldWeight in 1392, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.625 = fieldNorm(doc=1392)
   

5. Bilal, D.: Ranking, relevance judgment, and precision of information retrieval on children's queries : evaluation of Google, Yahoo!, Bing, Yahoo! Kids, and ask Kids (2012) 5.66

   5.664006 = sum of:
     5.664006 = weight(author_txt:bilal in 1393) [ClassicSimilarity], result of:
       5.664006 = fieldWeight in 1393, product of:
         1.0 = tf(freq=1.0), with freq of:
           1.0 = termFreq=1.0
         9.06241 = idf(docFreq=13, maxDocs=44421)
         0.625 = fieldNorm(doc=1393)
   

Similar documents (content)

1. Bilal, D.; Kirby, J.: Differences and similarities in information seeking : children and adults as Web users (2002) 0.75

   0.7535772 = sum of:
     0.7535772 = product of:
       1.4491869 = sum of:
         0.10524033 = weight(abstract_txt:seventh in 3591) [ClassicSimilarity], result of:
           0.10524033 = score(doc=3591,freq=1.0), product of:
             0.20474716 = queryWeight, product of:
               1.028716 = boost
               9.398883 = idf(docFreq=9, maxDocs=44421)
               0.021176107 = queryNorm
             0.5140014 = fieldWeight in 3591, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.398883 = idf(docFreq=9, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
         0.11291539 = weight(abstract_txt:backtracking in 3591) [ClassicSimilarity], result of:
           0.11291539 = score(doc=3591,freq=1.0), product of:
             0.21458457 = queryWeight, product of:
               1.0531393 = boost
               9.622026 = idf(docFreq=7, maxDocs=44421)
               0.021176107 = queryNorm
             0.5262046 = fieldWeight in 3591, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.622026 = idf(docFreq=7, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
         0.036903683 = weight(abstract_txt:cognitive in 3591) [ClassicSimilarity], result of:
           0.036903683 = score(doc=3591,freq=1.0), product of:
             0.12827821 = queryWeight, product of:
               1.1515373 = boost
               5.260521 = idf(docFreq=626, maxDocs=44421)
               0.021176107 = queryNorm
             0.28768474 = fieldWeight in 3591, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.260521 = idf(docFreq=626, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
         0.041557506 = weight(abstract_txt:finding in 3591) [ClassicSimilarity], result of:
           0.041557506 = score(doc=3591,freq=1.0), product of:
             0.13884793 = queryWeight, product of:
               1.1980399 = boost
               5.4729567 = idf(docFreq=506, maxDocs=44421)
               0.021176107 = queryNorm
             0.2993023 = fieldWeight in 3591, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.4729567 = idf(docFreq=506, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
         0.04962822 = weight(abstract_txt:were in 3591) [ClassicSimilarity], result of:
           0.04962822 = score(doc=3591,freq=7.0), product of:
             0.093524046 = queryWeight, product of:
               1.2042284 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.021176107 = queryNorm
             0.5306466 = fieldWeight in 3591, product of:
               2.6457512 = tf(freq=7.0), with freq of:
                 7.0 = termFreq=7.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
         0.046645045 = weight(abstract_txt:physical in 3591) [ClassicSimilarity], result of:
           0.046645045 = score(doc=3591,freq=1.0), product of:
             0.14996046 = queryWeight, product of:
               1.245059 = boost
               5.6877522 = idf(docFreq=408, maxDocs=44421)
               0.021176107 = queryNorm
             0.31104895 = fieldWeight in 3591, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.6877522 = idf(docFreq=408, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
         0.05581773 = weight(abstract_txt:keyword in 3591) [ClassicSimilarity], result of:
           0.05581773 = score(doc=3591,freq=1.0), product of:
             0.16902639 = queryWeight, product of:
               1.3218398 = boost
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.021176107 = queryNorm
             0.33023086 = fieldWeight in 3591, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
         0.16476364 = weight(abstract_txt:children's in 3591) [ClassicSimilarity], result of:
           0.16476364 = score(doc=3591,freq=3.0), product of:
             0.24116091 = queryWeight, product of:
               1.5789014 = boost
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.021176107 = queryNorm
             0.6832104 = fieldWeight in 3591, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
         0.08978919 = weight(abstract_txt:task in 3591) [ClassicSimilarity], result of:
           0.08978919 = score(doc=3591,freq=4.0), product of:
             0.1673399 = queryWeight, product of:
               1.6108198 = boost
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.021176107 = queryNorm
             0.5365677 = fieldWeight in 3591, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
         0.047799967 = weight(abstract_txt:compared in 3591) [ClassicSimilarity], result of:
           0.047799967 = score(doc=3591,freq=1.0), product of:
             0.17448385 = queryWeight, product of:
               1.6448443 = boost
               5.0093837 = idf(docFreq=805, maxDocs=44421)
               0.021176107 = queryNorm
             0.27395067 = fieldWeight in 3591, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.0093837 = idf(docFreq=805, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
         0.37696123 = weight(abstract_txt:yahooligans in 3591) [ClassicSimilarity], result of:
           0.37696123 = score(doc=3591,freq=3.0), product of:
             0.4187265 = queryWeight, product of:
               2.0804956 = boost
               9.504243 = idf(docFreq=8, maxDocs=44421)
               0.021176107 = queryNorm
             0.90025645 = fieldWeight in 3591, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               9.504243 = idf(docFreq=8, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
         0.26866746 = weight(abstract_txt:children in 3591) [ClassicSimilarity], result of:
           0.26866746 = score(doc=3591,freq=5.0), product of:
             0.32256967 = queryWeight, product of:
               2.2364488 = boost
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.021176107 = queryNorm
             0.8328974 = fieldWeight in 3591, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
         0.052497495 = weight(abstract_txt:search in 3591) [ClassicSimilarity], result of:
           0.052497495 = score(doc=3591,freq=2.0), product of:
             0.18573591 = queryWeight, product of:
               2.399994 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.021176107 = queryNorm
             0.2826459 = fieldWeight in 3591, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0546875 = fieldNorm(doc=3591)
       0.52 = coord(13/25)
   

2. Bilal, D.: Children's use of the Yahooligans! Web search engine : II. Cognitive and physical behaviors on research tasks (2001) 0.60

   0.6018814 = sum of:
     0.6018814 = product of:
       1.5047034 = sum of:
         0.120274656 = weight(abstract_txt:seventh in 6583) [ClassicSimilarity], result of:
           0.120274656 = score(doc=6583,freq=1.0), product of:
             0.20474716 = queryWeight, product of:
               1.028716 = boost
               9.398883 = idf(docFreq=9, maxDocs=44421)
               0.021176107 = queryNorm
             0.5874302 = fieldWeight in 6583, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.398883 = idf(docFreq=9, maxDocs=44421)
               0.0625 = fieldNorm(doc=6583)
         0.12904616 = weight(abstract_txt:backtracking in 6583) [ClassicSimilarity], result of:
           0.12904616 = score(doc=6583,freq=1.0), product of:
             0.21458457 = queryWeight, product of:
               1.0531393 = boost
               9.622026 = idf(docFreq=7, maxDocs=44421)
               0.021176107 = queryNorm
             0.60137665 = fieldWeight in 6583, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.622026 = idf(docFreq=7, maxDocs=44421)
               0.0625 = fieldNorm(doc=6583)
         0.07305035 = weight(abstract_txt:cognitive in 6583) [ClassicSimilarity], result of:
           0.07305035 = score(doc=6583,freq=3.0), product of:
             0.12827821 = queryWeight, product of:
               1.1515373 = boost
               5.260521 = idf(docFreq=626, maxDocs=44421)
               0.021176107 = queryNorm
             0.5694681 = fieldWeight in 6583, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.260521 = idf(docFreq=626, maxDocs=44421)
               0.0625 = fieldNorm(doc=6583)
         0.021437377 = weight(abstract_txt:were in 6583) [ClassicSimilarity], result of:
           0.021437377 = score(doc=6583,freq=1.0), product of:
             0.093524046 = queryWeight, product of:
               1.2042284 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.021176107 = queryNorm
             0.2292178 = fieldWeight in 6583, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.0625 = fieldNorm(doc=6583)
         0.092333235 = weight(abstract_txt:physical in 6583) [ClassicSimilarity], result of:
           0.092333235 = score(doc=6583,freq=3.0), product of:
             0.14996046 = queryWeight, product of:
               1.245059 = boost
               5.6877522 = idf(docFreq=408, maxDocs=44421)
               0.021176107 = queryNorm
             0.61571723 = fieldWeight in 6583, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               5.6877522 = idf(docFreq=408, maxDocs=44421)
               0.0625 = fieldNorm(doc=6583)
         0.21743162 = weight(abstract_txt:children's in 6583) [ClassicSimilarity], result of:
           0.21743162 = score(doc=6583,freq=4.0), product of:
             0.24116091 = queryWeight, product of:
               1.5789014 = boost
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.021176107 = queryNorm
             0.9016039 = fieldWeight in 6583, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.0625 = fieldNorm(doc=6583)
         0.12567867 = weight(abstract_txt:task in 6583) [ClassicSimilarity], result of:
           0.12567867 = score(doc=6583,freq=6.0), product of:
             0.1673399 = queryWeight, product of:
               1.6108198 = boost
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.021176107 = queryNorm
             0.7510383 = fieldWeight in 6583, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.0625 = fieldNorm(doc=6583)
         0.10044396 = weight(abstract_txt:assigned in 6583) [ClassicSimilarity], result of:
           0.10044396 = score(doc=6583,freq=1.0), product of:
             0.26187342 = queryWeight, product of:
               2.0150828 = boost
               6.136947 = idf(docFreq=260, maxDocs=44421)
               0.021176107 = queryNorm
             0.3835592 = fieldWeight in 6583, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.136947 = idf(docFreq=260, maxDocs=44421)
               0.0625 = fieldNorm(doc=6583)
         0.43081284 = weight(abstract_txt:yahooligans in 6583) [ClassicSimilarity], result of:
           0.43081284 = score(doc=6583,freq=3.0), product of:
             0.4187265 = queryWeight, product of:
               2.0804956 = boost
               9.504243 = idf(docFreq=8, maxDocs=44421)
               0.021176107 = queryNorm
             1.0288645 = fieldWeight in 6583, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               9.504243 = idf(docFreq=8, maxDocs=44421)
               0.0625 = fieldNorm(doc=6583)
         0.19419451 = weight(abstract_txt:children in 6583) [ClassicSimilarity], result of:
           0.19419451 = score(doc=6583,freq=2.0), product of:
             0.32256967 = queryWeight, product of:
               2.2364488 = boost
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.021176107 = queryNorm
             0.6020235 = fieldWeight in 6583, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.0625 = fieldNorm(doc=6583)
       0.4 = coord(10/25)
   

3. Bilal, D.; Gwizdka, J.: Children's query types and reformulations in Google search (2018) 0.60

   0.59643114 = sum of:
     0.59643114 = product of:
       1.3555254 = sum of:
         0.06716707 = weight(abstract_txt:finding in 47) [ClassicSimilarity], result of:
           0.06716707 = score(doc=47,freq=2.0), product of:
             0.13884793 = queryWeight, product of:
               1.1980399 = boost
               5.4729567 = idf(docFreq=506, maxDocs=44421)
               0.021176107 = queryNorm
             0.48374557 = fieldWeight in 47, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.4729567 = idf(docFreq=506, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.042874753 = weight(abstract_txt:were in 47) [ClassicSimilarity], result of:
           0.042874753 = score(doc=47,freq=4.0), product of:
             0.093524046 = queryWeight, product of:
               1.2042284 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.021176107 = queryNorm
             0.4584356 = fieldWeight in 47, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.08092719 = weight(abstract_txt:successful in 47) [ClassicSimilarity], result of:
           0.08092719 = score(doc=47,freq=2.0), product of:
             0.1572165 = queryWeight, product of:
               1.2748252 = boost
               5.823732 = idf(docFreq=356, maxDocs=44421)
               0.021176107 = queryNorm
             0.51475 = fieldWeight in 47, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.823732 = idf(docFreq=356, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.06379169 = weight(abstract_txt:keyword in 47) [ClassicSimilarity], result of:
           0.06379169 = score(doc=47,freq=1.0), product of:
             0.16902639 = queryWeight, product of:
               1.3218398 = boost
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.021176107 = queryNorm
             0.3774067 = fieldWeight in 47, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.038507 = idf(docFreq=287, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.24309592 = weight(abstract_txt:children's in 47) [ClassicSimilarity], result of:
           0.24309592 = score(doc=47,freq=5.0), product of:
             0.24116091 = queryWeight, product of:
               1.5789014 = boost
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.021176107 = queryNorm
             1.0080237 = fieldWeight in 47, product of:
               2.236068 = tf(freq=5.0), with freq of:
                 5.0 = termFreq=5.0
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.16225049 = weight(abstract_txt:task in 47) [ClassicSimilarity], result of:
           0.16225049 = score(doc=47,freq=10.0), product of:
             0.1673399 = queryWeight, product of:
               1.6108198 = boost
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.021176107 = queryNorm
             0.9695863 = fieldWeight in 47, product of:
               3.1622777 = tf(freq=10.0), with freq of:
                 10.0 = termFreq=10.0
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.084105596 = weight(abstract_txt:tasks in 47) [ClassicSimilarity], result of:
           0.084105596 = score(doc=47,freq=2.0), product of:
             0.18464978 = queryWeight, product of:
               1.6920828 = boost
               5.1532483 = idf(docFreq=697, maxDocs=44421)
               0.021176107 = queryNorm
             0.4554871 = fieldWeight in 47, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.1532483 = idf(docFreq=697, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.07415652 = weight(abstract_txt:self in 47) [ClassicSimilarity], result of:
           0.07415652 = score(doc=47,freq=1.0), product of:
             0.21391526 = queryWeight, product of:
               1.8212438 = boost
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.021176107 = queryNorm
             0.3466631 = fieldWeight in 47, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.3363548 = weight(abstract_txt:children in 47) [ClassicSimilarity], result of:
           0.3363548 = score(doc=47,freq=6.0), product of:
             0.32256967 = queryWeight, product of:
               2.2364488 = boost
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.021176107 = queryNorm
             1.0427353 = fieldWeight in 47, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.10391809 = weight(abstract_txt:search in 47) [ClassicSimilarity], result of:
           0.10391809 = score(doc=47,freq=6.0), product of:
             0.18573591 = queryWeight, product of:
               2.399994 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.021176107 = queryNorm
             0.5594938 = fieldWeight in 47, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
         0.09688323 = weight(abstract_txt:generated in 47) [ClassicSimilarity], result of:
           0.09688323 = score(doc=47,freq=1.0), product of:
             0.2813763 = queryWeight, product of:
               2.4119058 = boost
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.021176107 = queryNorm
             0.34431908 = fieldWeight in 47, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.0625 = fieldNorm(doc=47)
       0.44 = coord(11/25)
   

4. Bilal, D.; Bachir, I.: Children's interaction with cross-cultural and multilingual digital libraries : II. Information seeking, success, and affective experience (2007) 0.51

   0.5142166 = sum of:
     0.5142166 = product of:
       1.2855414 = sum of:
         0.050970215 = weight(abstract_txt:behavior in 1895) [ClassicSimilarity], result of:
           0.050970215 = score(doc=1895,freq=1.0), product of:
             0.12542461 = queryWeight, product of:
               1.1386571 = boost
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.021176107 = queryNorm
             0.4063813 = fieldWeight in 1895, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.2016807 = idf(docFreq=664, maxDocs=44421)
               0.078125 = fieldNorm(doc=1895)
         0.026796719 = weight(abstract_txt:were in 1895) [ClassicSimilarity], result of:
           0.026796719 = score(doc=1895,freq=1.0), product of:
             0.093524046 = queryWeight, product of:
               1.2042284 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.021176107 = queryNorm
             0.28652224 = fieldWeight in 1895, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.078125 = fieldNorm(doc=1895)
         0.071530215 = weight(abstract_txt:successful in 1895) [ClassicSimilarity], result of:
           0.071530215 = score(doc=1895,freq=1.0), product of:
             0.1572165 = queryWeight, product of:
               1.2748252 = boost
               5.823732 = idf(docFreq=356, maxDocs=44421)
               0.021176107 = queryNorm
             0.45497906 = fieldWeight in 1895, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.823732 = idf(docFreq=356, maxDocs=44421)
               0.078125 = fieldNorm(doc=1895)
         0.33287284 = weight(abstract_txt:children's in 1895) [ClassicSimilarity], result of:
           0.33287284 = score(doc=1895,freq=6.0), product of:
             0.24116091 = queryWeight, product of:
               1.5789014 = boost
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.021176107 = queryNorm
             1.3802935 = fieldWeight in 1895, product of:
               2.4494898 = tf(freq=6.0), with freq of:
                 6.0 = termFreq=6.0
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.078125 = fieldNorm(doc=1895)
         0.064135134 = weight(abstract_txt:task in 1895) [ClassicSimilarity], result of:
           0.064135134 = score(doc=1895,freq=1.0), product of:
             0.1673399 = queryWeight, product of:
               1.6108198 = boost
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.021176107 = queryNorm
             0.38326263 = fieldWeight in 1895, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.078125 = fieldNorm(doc=1895)
         0.10513199 = weight(abstract_txt:tasks in 1895) [ClassicSimilarity], result of:
           0.10513199 = score(doc=1895,freq=2.0), product of:
             0.18464978 = queryWeight, product of:
               1.6920828 = boost
               5.1532483 = idf(docFreq=697, maxDocs=44421)
               0.021176107 = queryNorm
             0.5693589 = fieldWeight in 1895, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.1532483 = idf(docFreq=697, maxDocs=44421)
               0.078125 = fieldNorm(doc=1895)
         0.09269565 = weight(abstract_txt:self in 1895) [ClassicSimilarity], result of:
           0.09269565 = score(doc=1895,freq=1.0), product of:
             0.21391526 = queryWeight, product of:
               1.8212438 = boost
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.021176107 = queryNorm
             0.43332887 = fieldWeight in 1895, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.5466094 = idf(docFreq=470, maxDocs=44421)
               0.078125 = fieldNorm(doc=1895)
         0.17756152 = weight(abstract_txt:assigned in 1895) [ClassicSimilarity], result of:
           0.17756152 = score(doc=1895,freq=2.0), product of:
             0.26187342 = queryWeight, product of:
               2.0150828 = boost
               6.136947 = idf(docFreq=260, maxDocs=44421)
               0.021176107 = queryNorm
             0.6780433 = fieldWeight in 1895, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.136947 = idf(docFreq=260, maxDocs=44421)
               0.078125 = fieldNorm(doc=1895)
         0.24274315 = weight(abstract_txt:children in 1895) [ClassicSimilarity], result of:
           0.24274315 = score(doc=1895,freq=2.0), product of:
             0.32256967 = queryWeight, product of:
               2.2364488 = boost
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.021176107 = queryNorm
             0.7525294 = fieldWeight in 1895, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.078125 = fieldNorm(doc=1895)
         0.12110404 = weight(abstract_txt:generated in 1895) [ClassicSimilarity], result of:
           0.12110404 = score(doc=1895,freq=1.0), product of:
             0.2813763 = queryWeight, product of:
               2.4119058 = boost
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.021176107 = queryNorm
             0.43039885 = fieldWeight in 1895, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               5.509105 = idf(docFreq=488, maxDocs=44421)
               0.078125 = fieldNorm(doc=1895)
       0.4 = coord(10/25)
   

5. Bilal, D.: Children's use of the Yahooligans! Web search engine : I. Cognitive, physical, and affective behaviors on fact-based search tasks (2000) 0.43

   0.42815027 = sum of:
     0.42815027 = product of:
       1.1893063 = sum of:
         0.120274656 = weight(abstract_txt:seventh in 5776) [ClassicSimilarity], result of:
           0.120274656 = score(doc=5776,freq=1.0), product of:
             0.20474716 = queryWeight, product of:
               1.028716 = boost
               9.398883 = idf(docFreq=9, maxDocs=44421)
               0.021176107 = queryNorm
             0.5874302 = fieldWeight in 5776, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               9.398883 = idf(docFreq=9, maxDocs=44421)
               0.0625 = fieldNorm(doc=5776)
         0.05964536 = weight(abstract_txt:cognitive in 5776) [ClassicSimilarity], result of:
           0.05964536 = score(doc=5776,freq=2.0), product of:
             0.12827821 = queryWeight, product of:
               1.1515373 = boost
               5.260521 = idf(docFreq=626, maxDocs=44421)
               0.021176107 = queryNorm
             0.46496874 = fieldWeight in 5776, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.260521 = idf(docFreq=626, maxDocs=44421)
               0.0625 = fieldNorm(doc=5776)
         0.037130624 = weight(abstract_txt:were in 5776) [ClassicSimilarity], result of:
           0.037130624 = score(doc=5776,freq=3.0), product of:
             0.093524046 = queryWeight, product of:
               1.2042284 = boost
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.021176107 = queryNorm
             0.39701685 = fieldWeight in 5776, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               3.6674848 = idf(docFreq=3083, maxDocs=44421)
               0.0625 = fieldNorm(doc=5776)
         0.07538977 = weight(abstract_txt:physical in 5776) [ClassicSimilarity], result of:
           0.07538977 = score(doc=5776,freq=2.0), product of:
             0.14996046 = queryWeight, product of:
               1.245059 = boost
               5.6877522 = idf(docFreq=408, maxDocs=44421)
               0.021176107 = queryNorm
             0.502731 = fieldWeight in 5776, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               5.6877522 = idf(docFreq=408, maxDocs=44421)
               0.0625 = fieldNorm(doc=5776)
         0.21743162 = weight(abstract_txt:children's in 5776) [ClassicSimilarity], result of:
           0.21743162 = score(doc=5776,freq=4.0), product of:
             0.24116091 = queryWeight, product of:
               1.5789014 = boost
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.021176107 = queryNorm
             0.9016039 = fieldWeight in 5776, product of:
               2.0 = tf(freq=4.0), with freq of:
                 4.0 = termFreq=4.0
               7.212831 = idf(docFreq=88, maxDocs=44421)
               0.0625 = fieldNorm(doc=5776)
         0.051308107 = weight(abstract_txt:task in 5776) [ClassicSimilarity], result of:
           0.051308107 = score(doc=5776,freq=1.0), product of:
             0.1673399 = queryWeight, product of:
               1.6108198 = boost
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.021176107 = queryNorm
             0.3066101 = fieldWeight in 5776, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               4.9057617 = idf(docFreq=893, maxDocs=44421)
               0.0625 = fieldNorm(doc=5776)
         0.43081284 = weight(abstract_txt:yahooligans in 5776) [ClassicSimilarity], result of:
           0.43081284 = score(doc=5776,freq=3.0), product of:
             0.4187265 = queryWeight, product of:
               2.0804956 = boost
               9.504243 = idf(docFreq=8, maxDocs=44421)
               0.021176107 = queryNorm
             1.0288645 = fieldWeight in 5776, product of:
               1.7320508 = tf(freq=3.0), with freq of:
                 3.0 = termFreq=3.0
               9.504243 = idf(docFreq=8, maxDocs=44421)
               0.0625 = fieldNorm(doc=5776)
         0.13731627 = weight(abstract_txt:children in 5776) [ClassicSimilarity], result of:
           0.13731627 = score(doc=5776,freq=1.0), product of:
             0.32256967 = queryWeight, product of:
               2.2364488 = boost
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.021176107 = queryNorm
             0.4256949 = fieldWeight in 5776, product of:
               1.0 = tf(freq=1.0), with freq of:
                 1.0 = termFreq=1.0
               6.8111186 = idf(docFreq=132, maxDocs=44421)
               0.0625 = fieldNorm(doc=5776)
         0.059997134 = weight(abstract_txt:search in 5776) [ClassicSimilarity], result of:
           0.059997134 = score(doc=5776,freq=2.0), product of:
             0.18573591 = queryWeight, product of:
               2.399994 = boost
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.021176107 = queryNorm
             0.3230239 = fieldWeight in 5776, product of:
               1.4142135 = tf(freq=2.0), with freq of:
                 2.0 = termFreq=2.0
               3.654598 = idf(docFreq=3123, maxDocs=44421)
               0.0625 = fieldNorm(doc=5776)
       0.36 = coord(9/25)