Given that thinking steps have been shown to be modestly correlated with the efficiency of working memory (measured by digit span; see Devetag and Warglien, 2003) and aging may reduce working memory or, potentially, some other cognitive process related to strategic reasoning, these changes could lead older subjects to use lower values of n, and to choose higher numbers than younger subjects. For the actual task, participants were told that they would be playing with nine other individuals from their research population, who had gone through identical procedures before providing their numbers. A written questionnaire was used to outline the.