Hartley, J.; Trueman, M.: ¬The effect of headings in texts on recall, search and retrieval (1983)
0.02
0.020280605 = product of:
0.24336725 = sum of:
0.24336725 = weight(_text_:205 in 2750) [ClassicSimilarity], result of:
0.24336725 = score(doc=2750,freq=2.0), product of:
0.21809372 = queryWeight, product of:
6.312392 = idf(docFreq=217, maxDocs=44218)
0.03455009 = queryNorm
1.1158838 = fieldWeight in 2750, product of:
1.4142135 = tf(freq=2.0), with freq of:
2.0 = termFreq=2.0
6.312392 = idf(docFreq=217, maxDocs=44218)
0.125 = fieldNorm(doc=2750)
0.083333336 = coord(1/12)
- Source
- British journal of educational psychology. 53(1983), S.205-214