This brief commentary on the paper Designing Research with In-built Differentiated Replication expands on concerns about a lack of replication research by focusing on three key questions of continuous importance: Why should researchers conduct more replication research? Why do so few researchers...

We have examined the frequency of replications published in the two leading forecasting journals, the International Journal of Forecasting (IJF) and the Journal of Forecasting (JoF). Replications in the IJF and JoF between 1996 and 2008 comprised 8.4% of the empirical papers. Various other areas...

In a recent edition of this journal, Borgatta et al. (1986), using hypothetical data, illustrated how the results produced by principal components analysis can be substantially different from those of common factor analysis. The present article, using seven well-known data sets, extends their...

The anonymous mixing of Fisherian (<italic>p</italic>-values) and Neyman--Pearsonian (α levels) ideas about testing, distilled in the customary but misleading <italic>p</italic> α criterion of statistical significance, has led researchers in the social and management sciences (and elsewhere) to commonly misinterpret the...