Torgerson, Carole J.; Torgerson, David J. - In: Economics of Innovation and New Technology 16 (2007) 5, pp. 323-330
The randomised controlled trial (RCT) is the best method for evaluating changes in educational practice. Nevertheless, it has been criticised because its results often have poor ecological validity. This valid criticism can be addressed by designing the RCT so that it mimics normal teaching...