Researchers across many fields have called for greater attention to heterogeneity of treatment effects--shifting focus from the average effect to variation in effects between different treatments, studies, or subgroups. True heterogeneity is important, but many reports of heterogeneity have proved to be false, non-replicable, or exaggerated. In…

Research on Portuguese language exams in the language assessment field remains scarce. To bridge this gap, this study examined washback from the large-scale, high-stakes Portuguese proficiency tests created by the Center of Evaluation of Portuguese as a Foreign Language ("Centro de Avaliação de Português Língua Estrangeira," or CAPLE as…