The DOI matches its Crossref record; 34 of the 35 references it cites were found in a registry or an index.
The Duality of Technology: Rethinking the Concept of Technology in Organizations
Open accessAbstract
This paper develops a new theoretical model with which to examine the interaction between technology and organizations. Early research studies assumed technology to be an objective, external force that would have deterministic impacts on organizational properties such as structure. Later researchers focused on the human aspect of technology, seeing it as the outcome of strategic choice and social action. This paper suggests that either view is incomplete, and proposes a reconceptualization of technology that takes both perspectives into account. A theoretical model—the structurational model of technology—is built on the basis of this new conceptualization, and its workings explored through discussion of a field study of information technology. The paper suggests that the reformulation of the technology concept and the structurational model of technology allow a deeper and more dialectical understanding of the interaction between technology and organizations. This understanding provides insight into the limits and opportunities of human choice, technology development and use, and organizational design. Implications for future research of the new concept of technology and the structurational model of technology are discussed.
Overview
Integrity signals
Registry
Cites
Statistics
Verification
Claims the paper makes
Claims other papers make about this one
Each is checked against this paper’s own text: does it say what the citing paper says it does?
In the citing paper
“Also highly relevant to the health and care environment is what Weick called “technology as equivoque” [103] and Orlikowski (drawing on earlier work on the social construction of technology) called “interpretive flexibility” [104]: a technology introduced into an organization is open to multiple interpretations; successful embedding will require opening up a space for dialogue, listening to”
In the citing paper
“In cases where impacts of public sector performance are difficult to measure, the feedback on new technologies depends heavily on stake-holders' value-based perceptions (e.g., seeing individual or collective gains; Taylor 2016) as well as on political, ideological or cognitive frameworks that these stakeholders apply when confronting or applying technologies (Orlikowski 1992).”
From Technological capacity in the public sector: the case of Estonia (2018) · cites this paper as Orlikowski 1992
In the citing paper
“Such a socio-technical structure facilitates collective intelligence (Orlikowski, 1992), in which social capital plays the facilitation role.”
From Smart tourism destinations: ecosystems for tourism destination competitiveness (2016) · cites this paper as Orlikowski, 1992
Citations
Cites
Perceived usefulness, perceived ease of use, and user acceptance of information technology
Davis, F. D. (1989) · MIS Quarterly · doi:10.2307/249008 · Cited by 68,483
Pinch, T. J., & Bijker, W. E. (1984) · Social Studies of Science · doi:10.1177/030631284014003004 · Cited by 3,890
A Framework for the Comparative Analysis of Organizations
Perrow, C. (1967) · American Sociological Review · doi:10.2307/2091811 · Cited by 2,509
Reducing Social Context Cues: Electronic Mail in Organizational Communication
Sproull, L. S., & Kiesler, S. B. (1986) · Management Science · doi:10.1287/mnsc.32.11.1492 · Cited by 2,377
Power, politics, and MIS implementation
Markus, M. L. (1983) · Communications of the ACM · doi:10.1145/358141.358148 · Cited by 2,224
Information Technology and Organizational Change: Causal Structure in Theory and Research
Markus, M. L., & Robey, D. (1988) · Management Science · doi:10.1287/mnsc.34.5.583 · Cited by 2,108
Crozier, M., & Friedberg, E. (2017) · Routledge eBooks · doi:10.4324/9781315131092 · Cited by 1,863
Contested Terrain: The Transformation of the Workplace in the Twentieth Century
Nielsen, R. P., & Edwards, R. (1980) · Academy of Management Review · doi:10.2307/257476 · Cited by 1,853
The Structuring of Organizational Structures
Ranson, S., Hinings, B., & Greenwood, R. (1980) · Administrative Science Quarterly · doi:10.2307/2392223 · Cited by 971
Social Analyses of Computing: Theoretical Perspectives in Recent Empirical Research
Kling, R. (1980) · ACM Computing Surveys · doi:10.1145/356802.356806 · Cited by 781
Flagged first, then by citations
1 of the 35 references couldn’t be matched to a known paper.
Cited by
Sorted by citations
Items 301–400 of 1,009
A Meta-Theory for Understanding Information Systems Within Sociotechnical Systems
Bostrom, R. P., Gupta, S., & Thomas, D. M. (2009) · Journal of Management Information Systems · doi:10.2753/mis0742-1222260102 · Cited by 202
Wiesböck, F., & Heß, T. (2019) · Electronic Markets · doi:10.1007/s12525-019-00364-9 · Cited by 207
Leonardi, P. M. (2011) · SSRN Electronic Journal · doi:10.5555/2017483.2017492 · Cited by 179
Beyond the organizational ‘container’: Conceptualizing 21st century sociotechnical work
Winter, S., Berente, N., Howison, J., & Butler, B. (2014) · Information and Organization · doi:10.1016/j.infoandorg.2014.10.003 · Cited by 178
Jeng, D. J., & Tzeng, G. (2011) · Computers & Industrial Engineering · doi:10.1016/j.cie.2011.12.016 · Cited by 182
Taipaleenmäki, J., & Ikäheimo, S. (2011) · International Journal of Accounting Information Systems · doi:10.1016/j.accinf.2013.09.003 · Cited by 177
Exploring the future of enterprise architecture: A Zachman perspective
Lapalme, J., Gerber, A., van der Merwe, A., Zachman, J. A., de Vries, M., & Hinkelmann, K. (2015) · Computers in Industry · doi:10.1016/j.compind.2015.06.010 · Cited by 176
The Influence of a Structurationist View on Strategic Management Research*
Pozzebon, M. (2004) · Journal of Management Studies · doi:10.1111/j.1467-6486.2004.00431.x · Cited by 175
Fischer, G., & Herrmann, T. A. (2011) · International Journal of Sociotechnology and Knowledge Development · doi:10.4018/jskd.2011010101 · Cited by 175
Changing Routines: A Process Model of Vicarious Group Learning in Pharmaceutical R&D
Bresman, H. M. (2012) · Academy of Management Journal · doi:10.5465/amj.2010.0725 · Cited by 175
Meijer, A., Lorenz, L., & Wessels, M. (2021) · Public Administration Review · doi:10.1111/puar.13391 · Cited by 174
Magni, M., Susan Taylor, M., & Venkatesh, V. (2010) · International Journal of Human-Computer Studies · doi:10.1016/j.ijhcs.2010.03.004 · Cited by 173
Faik, I., Barrett, M. I., & Oborn, E. (2020) · MIS Quarterly · doi:10.25300/misq/2020/14193 · Cited by 188
The Contexts of Control: Information, Power, and Truck-Driving Work
Levy, K. E. C. (2015) · The Information Society · doi:10.1080/01972243.2015.998105 · Cited by 171
HUMAN-CENTERED VS. USER-CENTERED APPROACHES TO INFORMATION SYSTEM DESIGN
Gasson, S. (2003) · Journal of the Association for Information Systems · Cited by 171
Lu, Y., Li, Y., Skibniewski, M. J., Wu, Z., Wang, R., & Le, Y. (2014) · Journal of Management in Engineering · doi:10.1061/(asce)me.1943-5479.0000319 · Cited by 170
Actors and Networks or Agents and Structures: Towards a Realist View of Information Systems
Mutch, A. (2002) · Organization · doi:10.1177/135050840293013 · Cited by 173
A Review on the Use of Action Research in Information Systems Studies
Lau, F. (1997) · Springer eBooks · doi:10.1007/978-0-387-35309-8_4 · Cited by 173
From dissonance to resonance: cognitive interdependence in quantitative finance
Beunza, D., & Stark, D. (2012) · Economy and Society · doi:10.1080/03085147.2011.638155 · Cited by 168
Carlo, J. L., Lyytinen, K., & Boland (2012) · MIS Quarterly · doi:10.2307/41703499 · Cited by 181
When Bureaucracy Meets the Crowd: Studying “Open Government” in the Vienna City Administration
Kornberger, M., Meyer, R. E., Brandtner, C., & Höllerer, M. A. (2017) · Organization Studies · doi:10.1177/0170840616655496 · Cited by 167
Does Web 3.0 come after Web 2.0? Deconstructing theoretical assumptions through practice
Barassi, V., & Treré, E. (2012) · New Media & Society · doi:10.1177/1461444812445878 · Cited by 166
Lageson, S. E. (2020) · doi:10.1093/oso/9780190872007.001.0001 · Cited by 166
Paolo Quattrone, A., & Hopper, T. (2006) · Information and Organization · doi:10.1016/j.infoandorg.2006.06.001 · Cited by 178
Haefliger, S., Monteiro, E., Foray, D., & von Krogh, G. (2011) · Long Range Planning · doi:10.1016/j.lrp.2011.08.001 · Cited by 176
Towards data-driven decision making: the role of analytical culture and centralization efforts
Szukits, Á., & Móricz, P. (2023) · Review of Managerial Science · doi:10.1007/s11846-023-00694-1 · Cited by 200
Concepts of e-HRM consequences: a categorisation, review and suggestion
Strohmeier, S. (2009) · The International Journal of Human Resource Management · doi:10.1080/09585190802707292 · Cited by 171
Emergent by Design: Performance and Transformation at Infosys Technologies
Garud, R. B., Kumaraswamy, A., & Sambamurthy, V. (2006) · Organization Science · doi:10.1287/orsc.1050.0179 · Cited by 160
The social and political construction of technological frames
Lin, A., & Silva, L. (2005) · European Journal of Information Systems · doi:10.1057/palgrave.ejis.3000521 · Cited by 160
Key questions on the use of big data in farming: An activity theory approach
Lioutas, E. D., Charatsari, C., Rocca, G. L., & Rosa, M. D. (2019) · NJAS - Wageningen Journal of Life Sciences · doi:10.1016/j.njas.2019.04.003 · Cited by 173
Constructing Organizational Life
Lawrence, T. B., & Phillips, N. (2019) · doi:10.1093/oso/9780198840022.001.0001 · Cited by 173
Embedding projects in multiple contexts – a structuration perspective
Manning, S. D. (2007) · International Journal of Project Management · doi:10.1016/j.ijproman.2007.08.012 · Cited by 160
Gibson, A. N., & Martin, J. D. (2019) · Journal of the Association for Information Science and Technology · doi:10.1002/asi.24128 · Cited by 178
Understanding customer‐specific factors underpinning internet banking adoption
Yousafzai, S., & Yani‐de‐Soriano, M. (2012) · International Journal of Bank Marketing · doi:10.1108/02652321211195703 · Cited by 158
Organizational Assimilation of Electronic Procurement Innovations
Rai, A., Brown, P., & Tang, X. (2009) · Journal of Management Information Systems · doi:10.2753/mis0742-1222260110 · Cited by 167
Mobile Media and Social Space: How Anytime, Anyplace Connectivity Structures Everyday Life
Abeele, M. V., Wolf, R. P. D., & Ling, R. (2018) · Media and Communication · doi:10.17645/mac.v6i2.1399 · Cited by 179
Über-Alienated: Powerless and Alone in the Gig Economy
Glavin, P., Bierman, A., & Schieman, S. (2021) · Work and Occupations · doi:10.1177/07308884211024711 · Cited by 157
Continuance in Expertise-Sharing Networks: A Social Perspective
Tiwana, A., & Bush, A. A. (2005) · IEEE Transactions on Engineering Management · doi:10.1109/tem.2004.839956 · Cited by 160
Kossek, E. E., Perrigino, M. B., & Rock, A. G. (2020) · Journal of Vocational Behavior · doi:10.1016/j.jvb.2020.103504 · Cited by 180
Technology-Mediated Learning: A Comprehensive Theoretical Model
Gupta, S., & Bostrom, R. (2009) · Journal of the AIS · doi:10.17705/1jais.00207 · Cited by 185
Business process management and IT management: The missing integration
Rahimi, F., Møller, C., & Hvam, L. (2015) · International Journal of Information Management · doi:10.1016/j.ijinfomgt.2015.10.004 · Cited by 156
Human agency in a wireless world: Patterns of technology use in nomadic computing environments
Cousins, K. C., & Robey, D. (2005) · Information and Organization · doi:10.1016/j.infoandorg.2005.02.008 · Cited by 155
Doherty, N. F., Coombs, C. R., & Loan‐Clarke, J. (2006) · European Journal of Information Systems · doi:10.1057/palgrave.ejis.3000653 · Cited by 161
Developing a knowledge-based perspective on coordination: The case of global software projects
Kotlarsky, J., van Fenema, P. C., & Willcocks, L. P. (2008) · Information & Management · doi:10.1016/j.im.2008.01.001 · Cited by 159
The Impact of Information Technology on Middle Managers
Pinsonneault, A., & Kraemer, K. L. (1993) · MIS Quarterly · doi:10.2307/249772 · Cited by 156
Exploring the success factors of eCRM strategies in practice
Chen, Q., & Chen, H.-M. (2004) · Journal of Database Marketing & Customer Strategy Management · doi:10.1057/palgrave.dbm.3240232 · Cited by 154
Battering Ram, Virus, or Beta-Institution? A Case Study of Chinese Local Government Microblogging
Schlæger, J., & Jiang, M. (2013) · China Information · doi:10.1177/0920203x14533901 · Cited by 153
The acceptance of chatbots in an enterprise context – A survey study
Brachten, F., Kißmer, T., & Stieglitz, S. (2021) · International Journal of Information Management · doi:10.1016/j.ijinfomgt.2021.102375 · Cited by 153
Grimand, A. (2012) · Management & Avenir · doi:10.3917/mav.054.0237 · Cited by 152
Managing by Data: Algorithmic Categories and Organizing
Alaimo, C., & Kallinikos, J. (2020) · Organization Studies · doi:10.1177/0170840620934062 · Cited by 154
Sociotechnical Systems Approach to BIM Implementation in a Multidisciplinary Construction Context
Sackey, E., Tuuli, M. M., & Dainty, A. (2014) · Journal of Management in Engineering · doi:10.1061/(asce)me.1943-5479.0000303 · Cited by 161
Exploring the Metaphor of Connectivity: Attributes, Dimensions and Duality
Kolb, D. G. (2008) · Organization Studies · doi:10.1177/0170840607084574 · Cited by 150
Danner‐Schröder, A., & Geiger, D. (2016) · Organization Science · doi:10.1287/orsc.2016.1055 · Cited by 150
Kaufmann, E., & Bernstein, A. (2010) · Journal of Web Semantics · doi:10.1016/j.websem.2010.06.001 · Cited by 149
Sydow, J., Windeler, A., Schubert, C., & Möllering, G. (2012) · Organization Studies · doi:10.1177/0170840612448029 · Cited by 160
Busca, L., & Bertrandias, L. (2019) · Journal of Interactive Marketing · doi:10.1016/j.intmar.2019.08.002 · Cited by 163
Giest, S. N., & Klievink, B. (2022) · Public Management Review · doi:10.1080/14719037.2022.2095001 · Cited by 147
The Philosophy of Critical Realism—An Opportunity for Information Systems Research
Dobson, P. (2001) · Information Systems Frontiers · doi:10.1023/a:1011495424958 · Cited by 147
A Field Study of Perceptions and Use of Mobile Telephones by 16 to 22 Year Olds
Carroll, J. M., Howard, S., Peck, J., & Murphy, J. M. (2002) · Journal of the Association for Information Systems · Cited by 147
Design Research in the Technology of Information Systems: Truth or Dare
Purao, S. (2002) · Cited by 146
Ellison, N. B. (1999) · Social Science Computer Review · doi:10.1177/089443939901700308 · Cited by 146
Materializing Strategy and Strategizing Material: Why Matter Matters
Dameron, S., Lê, J. K., & Lebaron, C. D. (2015) · British Journal of Management · doi:10.1111/1467-8551.12084 · Cited by 145
25 Years of Giddens in accounting research: Achievements, limitations and the future
Englund, H., Gerdin, J., & Burns, J. (2011) · Accounting Organizations and Society · doi:10.1016/j.aos.2011.10.001 · Cited by 145
An assessment of package–organisation misalignment: institutional and ontological structures
Sia, S. K., & Soh, C. (2007) · European Journal of Information Systems · doi:10.1057/palgrave.ejis.3000700 · Cited by 145
What Difference Does a Robot Make? The Material Enactment of Distributed Coordination
Beane, M., & Orlikowski, W. J. (2015) · Organization Science · doi:10.1287/orsc.2015.1004 · Cited by 144
Self-citationExamining technology, structure and identity during an Enterprise System implementation
Alvarez, R. (2008) · Information Systems Journal · doi:10.1111/j.1365-2575.2007.00286.x · Cited by 144
The theory of use behind telemedicine:
Lehoux, P., Sicotte, C., Denis, J.-L., Berg, M., & Lacroix, A. (2002) · Social Science & Medicine · doi:10.1016/s0277-9536(01)00063-6 · Cited by 144
Mousavi, R., Introna, L. D., & Hultin, L. (2021) · MIS Quarterly · doi:10.25300/misq/2021/15887 · Cited by 164
D’Adderio, L. (2003) · Industrial and Corporate Change · doi:10.1093/icc/12.2.321 · Cited by 143
Information technology and the transformation of industries: three research perspectives
Crowston, K., & Myers, M. D. (2004) · The Journal of Strategic Information Systems · doi:10.1016/j.jsis.2004.02.001 · Cited by 143
Exploring the e-Learning State of Art
Kahiigi, E. K., Ekenberg, L., Hansson, H., Tusubira, F. F., & Danielson, M. (2008) · The Electronic Journal of e-Learning · Cited by 142
Technological Objects, Social Positions, and the Transformational Model of Social Activity1
Faulkner, P., & Runde, J. (2013) · MIS Quarterly · doi:10.25300/misq/2013/37.3.06 · Cited by 141
Variations in Practice Adoption: The Roles of Conscious Reflection and Discourse
Gondo, M. B., & Amis, J. (2012) · Academy of Management Review · doi:10.5465/amr.2010.0312 · Cited by 145
Die (Wieder-)Entdeckung der Medien – Das Affordanzkonzept in der Mediensoziologie
Zillien, N. (2008) · Sociologia Internationalis · doi:10.3790/sint.46.2.161 · Cited by 140
Technology, Organization, and Structure—A Morphogenetic Approach
Mutch, A. (2009) · Organization Science · doi:10.1287/orsc.1090.0441 · Cited by 149
The Strategic Action Field Framework for Policy Implementation Research
Moulton, S., & Sandfort, J. R. (2016) · Policy Studies Journal · doi:10.1111/psj.12147 · Cited by 139
Socio-Theoretic Accounts of IS: The Problem of Agency
Rose, J., Jones, M., & Truex, D. P., III (2005) · Journal of the Association for Information Systems · Cited by 139
Enacting computer workaround practices within a medication dispensing system
Azad, B., & King, N. E. (2008) · European Journal of Information Systems · doi:10.1057/ejis.2008.14 · Cited by 138
Digital work: a research agenda
Orlikowski, W. J., & Scott, S. (2016) · Edward Elgar Publishing eBooks · doi:10.4337/9781784717025.00014 · Cited by 138
Self-citationThe impact of artificial intelligence on event experiences: a scenario technique approach
Neuhofer, B., Magnus, B., & Celuch, K. (2020) · Electronic Markets · doi:10.1007/s12525-020-00433-4 · Cited by 139
The Circuits-of-Power Framework for Studying Power in Institutionalization of Information Systems
Silva, L., & Backhouse, J. (2003) · Journal of the Association for Information Systems · doi:10.17705/1jais.00041 · Cited by 138
Completing Design in Use: Closing the Appropriation Cycle
Carroll, J. M. (2004) · Journal of the Association for Information Systems · Cited by 137
A Theory of Tailorable Technology Design
Germonprez, M., Hovorka, D. S., & Collopy, F. (2007) · Journal of the Association for Information Systems · doi:10.17705/1jais.00131 · Cited by 140
Interpreting an ERP-implementation project from a stakeholder perspective
Boonstra, A. (2005) · International Journal of Project Management · doi:10.1016/j.ijproman.2005.06.003 · Cited by 136
Process research in strategy formation: Theory, methodology and relevance
Sminia, H. (2009) · International Journal of Management Reviews · doi:10.1111/j.1468-2370.2008.00253.x · Cited by 153
Understanding the Limits of Technology’s Impact on Police Effectiveness
Lum, C. M., Koper, C. S., & Willis, J. J. (2016) · Police Quarterly · doi:10.1177/1098611116667279 · Cited by 138
Casting the Net: A Multimodal Network Perspective on User–System Interactions
Kane, G. C., & Alavi, M. (2008) · Information Systems Research · doi:10.1287/isre.1070.0158 · Cited by 135
Polese, F., Botti, A., Grimaldi, M., Monda, A., & Vesci, M. (2018) · Sustainability · doi:10.3390/su10010140 · Cited by 148
Cultural analysis of the organizational consequences of information technology
Robey, D., & Azevedo, A. (1994) · Accounting Management and Information Technologies · doi:10.1016/0959-8022(94)90011-6 · Cited by 137
Sarker, S., & Lee, A. S. (2002) · Journal of the Association for Information Systems · doi:10.17705/1jais.00019 · Cited by 138
Work design theory: A review and critique with implications for human resource development
Torraco, R. J. (2005) · Human Resource Development Quarterly · doi:10.1002/hrdq.1125 · Cited by 134
Denyer, D., Parry, E., & Flowers, P. (2011) · Long Range Planning · doi:10.1016/j.lrp.2011.09.007 · Cited by 140
Kim, S., & Mahoney, J. T. (2006) · Strategic Management Journal · doi:10.1002/smj.527 · Cited by 133
Mutual Shaping of Users and Technologies in a National Virtual Community
Boczkowski, P. J. (1999) · Journal of Communication · doi:10.1111/j.1460-2466.1999.tb02795.x · Cited by 133
Users and customizable software : a co-adaptive phenomenon
Mackay, W. E. (1990) · Cited by 133
Resource integration through digitalisation: a service ecosystem perspective
Sklyar, A., Kowalkowski, C., Sörhammar, D., & Tronvoll, B. (2019) · Journal of Marketing Management · doi:10.1080/0267257x.2019.1600572 · Cited by 139
Organization Learning Disorders: Conceptual Model and Intervention Hypotheses
Snyder, W. M., & Cummings, T. G. (1998) · Human Relations · doi:10.1177/001872679805100702 · Cited by 132
Rethinking Soft OR interventions: Models as boundary objects
Franco, L. A. (2013) · European Journal of Operational Research · doi:10.1016/j.ejor.2013.06.033 · Cited by 139
The Practicality of Practice Theory
Feldman, M. S., & Worline, M. C. (2015) · Academy of Management Learning and Education · doi:10.5465/amle.2014.0356 · Cited by 140
Kallinikos, J. (2010) · Palgrave Macmillan UK eBooks · doi:10.1057/9780230295148 · Cited by 130
Metadata
- Authors
- Orlikowski, W. J.
- Affiliations
- Massachusetts Institute of Technology (US)
- Corresponding author
- Orlikowski, Wanda J.
- ORCID
- Orlikowski, Wanda J.
- Venue
- Organization Science
- Published
- 1992-08
- Volume
- 3
- Issue
- 3
- Pages
- 398-427
- ISSN
- 1047-7039 (ISSN-L)
- 1526-5455
- OpenAlex
- W2101419153
- Cited by
- 4,957
- References
- 35
- Citations by year
- 2026: 248 · 2025: 144 · 2024: 108 · 2023: 123 · 2022: 157 · 2021: 175 · 2020: 180 · 2019: 195 · 2018: 164 · 2017: 123 · 2016: 167 · 2015: 198 · 2014: 237 · 2013: 220 · 2012: 211
- FWCI
- 105.32
- Type
- journal article
- Language
- en
- Open access
- green
- hdl.handle.net
- Locations
- Organization Science (publishedVersion)
- DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion)
- RePEc: Research Papers in Economics (submittedVersion)
- DSpace@MIT (Massachusetts Institute of Technology) (submittedVersion, cc-by-nc)
- Topics
- Social Sciences › Business, Management and Accounting › Management Information Systems › Information Systems Theories and Implementation
- Social Sciences › Business, Management and Accounting › Organizational Behavior and Human Resource Management › Management and Organizational Studies
- Social Sciences › Business, Management and Accounting › Management Information Systems › Information Technology Governance and Strategy
- Keywords
- technology concepts, information technology, organizational structure, strategic choice, social action, dialectical understanding, organizational design, technological progress
About these checks
Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.
Statistics and arithmetic are recomputed, not judged.
Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.
What counts as a claim ›How we measure confidence ›How we check this ›
Are you an author, or do you see a problem with this page? Request a review