Abstract
Our 2018 paper1 introduced StopWatch, a smartwatch-based system for passive measurement of cigarette smoking. Preliminary validation testing indicated performance figures of 86% precision and 71% recall. The system was implemented on a model of smartwatch typical of the technology commercially available at the time (LG ‘G-watch’). In the current study we seek to re-validate the StopWatch system using a more current model of smartwatch (Ticwatch C2). We achieved a performance of 88% precision and 78% recall using this device. The re-validation exercise, taking place at a time of restrictions on movement and on research studies due to the Covid-19 pandemic, also provided experience of adapting a study from working with face-to-face participants in a laboratory setting to capturing data using remote participants in their natural environment.
| Original language | English |
|---|---|
| Publisher | PsyArXiv Preprints |
| DOIs | |
| Publication status | Published - 21 Sept 2022 |
Funding
This work was supported by a Health Data Research UK fellowship awarded to AS (MR/S003894/1), and by the Medical Research Council Integrative Epidemiology Unit at the University of Bristol which is supported by the Medical Research Council and the University of Bristol (grants MC_ UU_12013/6 and MC_UU_12013/7), and by Cancer Research UK [grant number C18281/A29019]