Mehl Matthias R
University of Arizona.
Curr Dir Psychol Sci. 2017 Apr;26(2):184-190. doi: 10.1177/0963721416680611. Epub 2017 Apr 6.
This article reviews the Electronically Activated Recorder or EAR as an ambulatory ecological momentary assessment tool for the real-world observation of daily behavior. Technically, the EAR is an audio recorder that intermittently records snippets of ambient sounds while participants go about their lives. Conceptually, it is a naturalistic observation method that yields an acoustic log of a person's day as it unfolds. The power of the EAR lies in unobtrusively collecting authentic real-life observational data. In preserving a high degree of naturalism at the level of the raw recordings, it resembles ethnographic methods; through its sampling and coding, it enables larger empirical studies. The article provides an overview of the EAR method, reviews its validity, utility, and limitations, and discusses it in the context of current developments in ambulatory assessment, specifically the emerging field of mobile sensing.
本文回顾了电子激活记录仪(EAR)作为一种用于对日常行为进行现实世界观察的动态生态瞬时评估工具。从技术上讲,EAR是一种音频记录仪,当参与者在日常生活中时,它会间歇性地记录周围声音的片段。从概念上讲,它是一种自然观察方法,随着一天的展开,生成一个人的日常声音记录。EAR的强大之处在于能在不引人注意的情况下收集真实的现实生活观察数据。在原始记录层面保持高度自然主义方面,它类似于人种志方法;通过其采样和编码,它能够进行更大规模的实证研究。本文概述了EAR方法,回顾了其有效性、实用性和局限性,并在动态评估的当前发展背景下进行了讨论,特别是移动传感这一新兴领域。