id author title date pages extension mime words sentence flesch summary cache txt crl-11411 Jahoda, Gerald ASLIB Cranfield Research Project, Report on the First Stage of an Investigation into the Comparative Efficiency of Indexing Systems (Book Review) 1961-04-30 1 .pdf application/pdf 697 37 51 T w o other variables were also selected foi this experiment: the training of the indexer (whether technical knowledge of the subject but no indexing experience, indexing experi- ence in the subject field, indexing experience in another subject field, or theoretical knowl- edge of indexing) and time allotted for in- dexing a document. T h e recent history of indexing systems is not without its paradoxes. cache/crl-11411.pdf txt/crl-11411.txt