CRANV1P1 Documents and Questions chapter Cyril Cleverdon Jack Mills Michael Keen Cranfield An investigation supported by a grant to Aslib by the National Science Foundation. Use, reproduction, or publication, in whole or in part, is permitted for any purpose of the United States Government. - 25 - Origin of documents Submitted Accepted Rejected % accepted to the authors as as as for assessment relevant non-relevant relevant I. Cited in authors' papers 2. Additional documents selected by students 3. Additional documents by bibliographic coupling 4. Complete total 1972 (7.1) 1250 (4.5) 722 (2.6) 63.4% 917 (3.3) 592 (3.1) 325 (1.2) 64.6% 198 (0.7) 119 (0.4) 79 (0.3) 60.1% 3087 (11.1) 1961 (7.0) 1126 (4.1) 63.5% TABLE 3.4 RELEVANCE ASSESSMENTS OF DOCUMENTS AS DECIDED BY AUTHORS IN RELATION TO THEIR SEARCH QUESTIONS The total for all 279 questions is shown, with the average for each question in brackets. Origin of documents 1. Cited in authors' papers 2. Additional documents selected by students 3. Additional documents by bibliographic coupling 4. Complete total Grades of Relevance Relevant documents 1 2 3 4 1250 (4.5) 158 (0.6) 348 (1.2) 492 (1.8) 252 (0.9) 592 (2.1) 12 97 (0.4) 344 (1.2) 139 (0.5) 119 (0.4) 1 16 (0.I) 66 (0.2) 36 (0.1) 1961 (7.0) 171 (0.6) 461 (1.7) 902 (3.2) 427 (1.5) TABLE 3.5 GRADES OF RELEVANCE AS DECIDED BY THE AUTHORS The total for all 279 questions is shown, with the average for each question in brackets. It will be noted that this table represents a breakdown of the figures as given in the second column of Table 3.4.