Ten-Year Cross-Disciplinary Comparison of the Growth of Open Access and How it Increases Research Citation Impact Export

@misc{citeulike:3041607, abstract = {Lawrence (2001)found computer science articles that were openly accessible (OA) on the Web were cited more. We replicated this in physics. We tested 1,307,038 articles published across 12 years (1992-2003) in 10 disciplines (Biology, Psychology, Sociology, Health, Political Science, Economics, Education, Law, Business, Management). A robot trawls the Web for full-texts using reference metadata ISI citation data (signal detectability d'=2.45; bias = 0.52). Percentage OA (relative to total OA + NOA) articles varies from 5\%-16\% (depending on discipline, year and country) and is slowly climbing annually (correlation r=.76, sample size N=12, probability p \< 0.005). Comparing OA and NOA articles in the same journal/year, OA articles have consistently more citations, the advantage varying from 36\%-172\% by discipline and year. Comparing articles within six citation ranges (0, 1, 2-3, 4-7, 8-15, 16+ citations), the annual percentage of OA articles is growing significantly faster than NOA within every citation range (r \> .90, N=12, p \< .0005) and the effect is greater with the more highly cited articles (r = .98, N=6, p \< .005). Causality cannot be determined from these data, but our prior finding of a similar pattern in physics, where percent OA is much higher (and even approaches 100\% in some subfields), makes it unlikely that the OA citation advantage is merely or mostly a self-selection bias (for making only one's better articles OA). Further research will analyze the effect's timing, causal components and relation to other variables.}, archivePrefix = {arXiv}, author = {Hajjem, C. and Harnad, S. and Gingras, Y.}, citeulike-article-id = {3041607}, citeulike-linkout-0 = {http://arxiv.org/abs/cs/0606079v2}, citeulike-linkout-1 = {http://arxiv.org/pdf/cs/0606079v2}, day = {15}, eprint = {cs/0606079v2}, keywords = {access, citation, impact, open}, month = {Aug}, posted-at = {2008-07-25 03:38:41}, priority = {5}, title = {Ten-Year Cross-Disciplinary Comparison of the Growth of Open Access and How it Increases Research Citation Impact}, url = {http://arxiv.org/abs/cs/0606079v2}, year = {2006} }

TY - ELEC ID - citeulike:3041607 L3 - citeulike-article-id:3041607 N2 - Lawrence (2001)found computer science articles that were openly accessible (OA) on the Web were cited more. We replicated this in physics. We tested 1,307,038 articles published across 12 years (1992-2003) in 10 disciplines (Biology, Psychology, Sociology, Health, Political Science, Economics, Education, Law, Business, Management). A robot trawls the Web for full-texts using reference metadata ISI citation data (signal detectability d'=2.45; bias = 0.52). Percentage OA (relative to total OA + NOA) articles varies from 5%-16% (depending on discipline, year and country) and is slowly climbing annually (correlation r=.76, sample size N=12, probability p < 0.005). Comparing OA and NOA articles in the same journal/year, OA articles have consistently more citations, the advantage varying from 36%-172% by discipline and year. Comparing articles within six citation ranges (0, 1, 2-3, 4-7, 8-15, 16+ citations), the annual percentage of OA articles is growing significantly faster than NOA within every citation range (r > .90, N=12, p < .0005) and the effect is greater with the more highly cited articles (r = .98, N=6, p < .005). Causality cannot be determined from these data, but our prior finding of a similar pattern in physics, where percent OA is much higher (and even approaches 100% in some subfields), makes it unlikely that the OA citation advantage is merely or mostly a self-selection bias (for making only one's better articles OA). Further research will analyze the effect's timing, causal components and relation to other variables. TI - Ten-Year Cross-Disciplinary Comparison of the Growth of Open Access and How it Increases Research Citation Impact KW - access KW - citation KW - impact KW - open AU - Hajjem, C AU - Harnad, S AU - Gingras, Y PY - 2006/Aug/15/ UR - http://arxiv.org/abs/cs/0606079v2 ER -