A computerized measure of Referential Activity (RA), the High WRAD Proportion (HWP), which assesses the proportion of high RA language in a text, was compared to a widely used measure of episodic memory, the proportion of internal details (IP), those pertaining directly to the main event being described. Both measures, along with several additional computerized measures, were applied to narratives of past and future events, produced by two groups of speakers varying in age. The HWP and IP showed correlations with high effect sizes for all age groups and narrative time periods, providing strong validation for the RA concept and for HWP as a computerized measure of episodic memory. Differences were also found between the results for both narrative time and participant age based on the two measures. HWP scores for narratives of past experience were higher than for future narratives; these differences were supported by other computerized measures applied to the narratives. The differences were in the same direction but were not significant for IP. Older participants showed significantly lower levels of episodic memory, according to IP; the differences were in the same direction but were not significant for HWP. The implications of these results for the RA concept and for the multiple code theory of episodic memory are discussed.

将参考活动 (RA) 的计算机化衡量标准，即高 WRAD 比例 (HWP)，评估文本中高 RA 语言的比例，与广泛使用的情景记忆衡量标准进行比较，即内部详细信息 (IP)，与所描述的主要事件直接相关的信息。这两项措施，连同一些额外的计算机化措施，都被应用于对过去和未来事件的叙述，由两组年龄不同的说话者制作。HWP 和 IP 显示与所有年龄组和叙事时间段的高效应量相关，为 RA 概念和 HWP 作为情景记忆的计算机化测量提供了强有力的验证。基于这两种测量，在叙述时间和参与者年龄的结果之间也发现了差异。过去经验叙述的 HWP 分数高于未来叙述；这些差异得到了适用于叙述的其他计算机化措施的支持。差异在同一方向，但对 IP 不显着。根据 IP，年龄较大的参与者表现出的情景记忆水平明显较低；差异在同一方向，但对 HWP 不显着。讨论了这些结果对 RA 概念和情景记忆的多重密码理论的影响。