“…This error pattern is robust, observed in more than 20 studies, and follows the completion of a number of different kinds of collaborative tasks including collage making (e.g., Foley et al, 1993), search tasks , categorization tasks , arithmetic problems (Calin-Jageman & Ratner, 2000), and object construction tasks (Sommerville & Hammond, 2007). Moreover, this error pattern is observed across numerous encoding (Foley & Ratner, 1996;Foley et al, 1993;Foley et al, 2002) and test conditions (Foley & Ratner, 1998a;Sommerville & Hammond) and does not result from an egocentric bias or from a more 218 FOLEY, RATNER, AND GENTES general response bias to report ''me'' when in doubt (Foley & Ratner, 1996, 1998aFoley et al, 2002).…”