Erratum to: Behav Res. DOI 10.3758/s13428-014-0491-x. The affiliations for four authors were erroneously printed. The correct affiliation for Adam Naples and James C. McPartland is: Yale Child Study Center, 230 South Frontage Road, New Haven 06520, CT, USA. The correct affiliation for Raphael Bernier and Anna Kresse is: University of Washington, Seattle, WA, USA.