David Bourget (Western Ontario)
David Chalmers (ANU, NYU)
Rafael De Clercq
Jack Alan Reynolds
Learn more about PhilPapers
British Journal of Educational Studies 51 (1):36 - 45 (2003)
Randomised controlled trials (RCTs) are often seen as the 'gold standard' of evaluative research. However, whilst randomisation will ensure comparable groups, trials are still vulnerable to a range of biases that can undermine their internal validity. In this paper we describe a number of common threats to the internal validity of RCTs and methods of countering them. We highlight a number of examples from randomised trials in education and health care where problems of execution and analysis of the RCT has undermined their internal validity. However, awareness of these potential biases can lead to careful planning to avoid or reduce their occurrence. If good quality randomised trials are to inform policy and practice in education then rigorous trials need to be designed that are the least susceptible to threats to their validity.
|Keywords||No keywords specified (fix it)|
No categories specified
(categorize this paper)
Setup an account with your affiliations in order to access resources via your University's proxy server
Configure custom proxy (use this if your affiliation does not provide a proxy)
|Through your library|
References found in this work BETA
Citations of this work BETA
Vanora Hundley, Helen Cheyne, J. Martin Bland, Maggie Styles & Carol A. Barnett (2010). So You Want to Conduct a Cluster Randomized Controlled Trial? Lessons From a National Cluster Trial of Early Labour. Journal of Evaluation in Clinical Practice 16 (3):632-638.
Similar books and articles
Carole J. Torgerson & David J. Torgerson (2001). The Need for Randomised Controlled Trials in Educational Research. British Journal of Educational Studies 49 (3):316 - 328.
Gordon C. S. Smith & Jill P. Pell (2003). Parachute Use to Prevent Death and Major Trauma Related to Gravitational Challenge: Systematic Review of Randomised Controlled Trials. Bmj 327 (7429):1459--61.
Nancy Cartwright (2010). What Are Randomised Controlled Trials Good For? Philosophical Studies 147 (1):59 - 70.
P. Allmark (2006). Improving the Quality of Consent to Randomised Controlled Trials by Using Continuous Consent and Clinician Training in the Consent Process. Journal of Medical Ethics 32 (8):439-443.
P. Allmark (2006). Should Desperate Volunteers Be Included in Randomised Controlled Trials? Journal of Medical Ethics 32 (9):548-553.
P. Allmark (2001). Is It in a Neonate's Best Interest to Enter a Randomised Controlled Trial? Journal of Medical Ethics 27 (2):110-113.
F. G. Miller & D. Wendler (2008). Is It Ethical to Keep Interim Findings of Randomised Controlled Trials Confidential? Journal of Medical Ethics 34 (3):198-201.
Carole J. Torgerson (2006). Publication Bias: The Achilles' Heel of Systematic Reviews? British Journal of Educational Studies 54 (1):89 - 102.
Roger Stanev (2012). Modelling and Simulating Early Stopping of RCTs: A Case Study of Early Stop Due to Harm. Journal of Experimental and Theoretical Artificial Intelligence 24 (4):513-526.
Maurie Markman (2004). The Research Misconception. International Journal of Applied Philosophy 18 (2):241-252.
Cecilia Nardini & Jan Sprenger (2014). Bias and Conditioning in Sequential Medical Trials. Philosophy of Science 80 (5):1053-1064.
James A. Anderson (2006). The Ethics and Science of Placebo-Controlled Trials: Assay Sensitivity and the Duhem-Quine Thesis. Journal of Medicine and Philosophy 31 (1):65 – 81.
Peter Graeme Hobbins (2005). Compromised Ethical Principles in Randomised Clinical Trials of Distant, Intercessory Prayer. Journal of Bioethical Inquiry 2 (3):142-152.
Franklin G. Miller & Howard Brody (2002). What Makes Placebo-Controlled Trials Unethical? American Journal of Bioethics 2 (2):3 – 9.
Robyn Bluhm (2009). Some Observations on “Observational” Research. Perspectives in Biology and Medicine 52 (2):252-263.
Added to index2011-05-29
Total downloads4 ( #237,322 of 1,096,452 )
Recent downloads (6 months)1 ( #231,754 of 1,096,452 )
How can I increase my downloads?