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. - 27 - Origin of documents 1. Cited in authors' papers 2. Additional documents selected by students 3. Additional documents by bibliographic coupling 4. Complete total Relevant Total Grades of Relevance 1 2 3 (B) 589 (5.0) 12 (0.1) 159 (1.3) 273 (2.4) (S) 661 (4.1) 146 (0.9) 189 (1.2) 219 (1.4) (B) 258 (2.2) 1 53 (0.5) 144 (1.2) (S) 334 (2.1) 11 (0.1) 44 (0.3) 200 (1.2) (B) 59 (0.5) 0 6 (0.1) 30 (0.2) (S) 60 (0.4) 1 10 (0.1) 36 (0.2) (B) 906 (7.7) 13 (0.1) 218 (1.9) 447 (3.8) (S) 1055 (6.6) 158 (I.0) 243 (1.6) 455 (2.8) 4 145 (l .2) 107 (0.6) 60 (0.5) 79 (0.5) 23 (0.2) 13 (0.1) 228 (i .9) 199 (1.2) TABLE 3.7 RELEVANCE ASSESSMENTS GIVING A COMPARISON OF BASIC AND SUPPLEMENTARY QUESTIONS FOR ALL GRADES OF RELEVANCE This table gives the same data as Table 3.5 except that the 279 questions are divided into the two groups of 118 basic questions and 116 supplementary questions, with the average for each question in brackets. (B) = Basic question (S) = Supplementary question.