Behavioral and Brain Sciences

Open Peer Commentary
Halford et al.: Relational complexity

Can we measure working memory without contamination from knowledge held in long-term memory?

John Sweller a1
a1 School of Education Studies, University of New South Wales, Sydney 2052, Australia


The metric devised by Halford, Wilson & Phillips may have considerable potential in distinguishing between the working memory demands of different tasks but may be less effective in distinguishing working memory capacity between individuals. Despite the strengths of the metric, determining whether an effect is caused by relational complexity or by differential levels of expertise is currently problematic.