On the decline of n=1 research in Behaviour Change:: A comment and some questions

The n = 1 research design and the ethos underpinning it have importantly contributed to applied behaviour analysis since its inception. Many papers in Behaviour Change (BC) using this methodology have been of value to practitioners in the field, as well as to researchers and teachers. However, the rate Of publication of n = 1 papers in BC has decreased during the last decade. The present article first documents that decline in rate of publication, then raises some issues for discussion about Wily this has occurred. Comments from the wider readership are invited in an effort to resurrect this valuable and informative clinical research tradition.