Madden, A.D.; Ford, N.J.; Miller, D.; Levy, P.: Children's use of the internet for information-seeking : what strategies do they use, and what factors affect their performance? (2006)
0.04
0.035035703 = product of:
0.07007141 = sum of:
0.07007141 = product of:
0.14014281 = sum of:
0.14014281 = weight(_text_:a.d in 615) [ClassicSimilarity], result of:
0.14014281 = score(doc=615,freq=2.0), product of:
0.33220384 = queryWeight, product of:
7.636444 = idf(docFreq=57, maxDocs=44218)
0.043502424 = queryNorm
0.4218579 = fieldWeight in 615, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
7.636444 = idf(docFreq=57, maxDocs=44218)
0.0390625 = fieldNorm(doc=615)
0.5 = coord(1/2)
0.5 = coord(1/2)
