Using new survey data of teachers in England we investigate the propensity for teachers to consent to data linkage, differences by observable characteristics and the effect of a randomly assigned information intervention. We find that consent rates are high (75 percent), possibly due to the...

Using new survey data of teachers in England we investigate the propensity for teachers to consent to data linkage, differences by observable characteristics and the effect of a randomly assigned information intervention. We find that consent rates are high (75 percent), possibly due to the...

The present paper examines the impact of ability matching and differentiated instruction on the learning outcomes of eighth and ninth grade students in a financial education programme. In particular, the effect of within-class ability matching is investigated by forming pairs of students either...

Basic methods to compute the required sample size are well understood and supported by widely available software. However, the sophistication of the sample size methods commonly used has not kept pace with the complexity of the experimental designs most often employed in practice. In this paper,...

This last decade has seen the emergence of a new field of research in development economics: randomised control trials. This paper explores the contrast between the (many) limitations and (very narrow) real scope of these methods and their success in sheer number and media coverage. Our analysis...