Skip to main content

Avoiding Bias in Randomised Controlled Trials in Educational Research

Buy Article:

$48.00 plus tax (Refund Policy)

Abstract:

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.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/1467-8527.t01-2-00223

Affiliations: University of York

Publication date: March 1, 2003

bpl/bjes/2003/00000051/00000001/art00006
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more