关系事件模型的效力、准确性与精确性

The Power, Accuracy, and Precision of the Relational Event Model

ORGANIZATIONAL RESEARCH METHODS · 2020
被引 18
人大 A-ABS 4

中文导读

通过模拟实验和真实邮件数据,评估关系事件模型在不同条件下的统计效力、精确性和准确性,发现其解释力强但预测准确性可能较差,并为组织研究者提供使用建议。

Abstract

The relational event model (REM) solves a problem for organizational researchers who have access to sequences of time-stamped interactions. It enables them to estimate statistical models without collapsing the data into cross-sectional panels, which removes timing and sequence information. However, there is little guidance in the extant literature regarding issues that may affect REM’s power, precision, and accuracy: How many events or actors are needed? How large should the risk set be? How should statistics be scaled? To gain insights into these issues, we conduct a series of experiments using simulated sequences of relational events under different conditions and using different sampling and scaling strategies. We also provide an empirical example using email communications in a real-life context. Our results indicate that, in most cases, the power and precision levels of REMs are good, making it a strong explanatory model. However, REM suffers from issues of accuracy that can be severe in certain cases, making it a poor predictive model. We provide a set of practical recommendations to guide researchers’ use of REMs in organizational research.

组织研究统计建模事件序列分析计量经济学