Graeme Porte is Senior Lecturer in English Language and Applied Linguistics at the University of Granada, Spain. He has been Editor of the Cambridge University Press journal Language Teaching for 15 years and lectures and writes on quantitative research methods with a particular emphasis on research critique and replication research.

Kevin McManus is Watz Early Career Professor in Language and Linguistics, Associate Director of the Center for Language Acquisition, and Assistant Professor of Applied Linguistics at the Pennsylvania State University, USA. His research specializations include second language learning and teaching, psycholinguistics, research methodology, and replication research.