Cited by 193Mental Health Research TopicsDigital Mental Health InterventionsEmotion and Mood Recognition

Mobile phone-based unobtrusive ecological momentary assessment of day-to-day mood: an explorative study

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Asselbergs, Joost, Ruwaard, Jeroen, Ejdys, Michal, Schrader, Niels, Sijbrandij, Marit, Riper, Heleen·2016·Journal of Medical Internet Research

Abstract

BACKGROUND: Ecological momentary assessment (EMA) is a useful method to tap the dynamics of psychological and behavioral phenomena in real-world contexts. However, the response burden of (self-report) EMA limits its clinical utility. OBJECTIVE: The aim was to explore mobile phone-based unobtrusive EMA, in which mobile phone usage logs are considered as proxy measures of clinically relevant user states and contexts. METHODS: This was an uncontrolled explorative pilot study. Our study consisted of 6 weeks of EMA/unobtrusive EMA data collection in a Dutch student population (N=33), followed by a regression modeling analysis. Participants self-monitored their mood on their mobile phone (EMA) with a one-dimensional mood measure (1 to 10) and a two-dimensional circumplex measure (arousal/valence, -2 to 2). Meanwhile, with participants' consent, a mobile phone app unobtrusively collected (meta) data from six smartphone sensor logs (unobtrusive EMA: calls/short message service (SMS) text messages, screen time, application usage, accelerometer, and phone camera events). Through forward stepwise regression (FSR), we built personalized regression models from the unobtrusive EMA variables to predict day-to-day variation in EMA mood ratings. The predictive performance of these models (ie, cross-validated mean squared error and percentage of correct predictions) was compared to naive benchmark regression models (the mean model and a lag-2 history model). RESULTS: A total of 27 participants (81%) provided a mean 35.5 days (SD 3.8) of valid EMA/unobtrusive EMA data. The FSR models accurately predicted 55% to 76% of EMA mood scores. However, the predictive performance of these models was significantly inferior to that of naive benchmark models. CONCLUSIONS: Mobile phone-based unobtrusive EMA is a technically feasible and potentially powerful EMA variant. The method is young and positive findings may not replicate. At present, we do not recommend the application of FSR-based mood prediction in real-world clinical settings. Further psychometric studies and more advanced data mining techniques are needed to unlock unobtrusive EMA's true potential.

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  • The affect items were derived from previous personalized sensing studies and a review of affect measurement in previous EMA studies to increase comparability with existing literature.

    “We derived these affect items from previous personalized sensing studies [which used the circumplex model of emotion as basis; (69, 70)] and a review of affect measurement in previous EMA studies (71), to increase the comparability with existing literature.”
  • Studies in behavioral sensing using smartphones frequently use small samples.

    “This is particularly crucial in the field of behavioral sensing using smartphones since studies in this field frequently use small samples, are usually not cross-validated, and failure to replicate has already been observed (Ruwaard et al., 2016).”
  • Failure to replicate has already been observed in behavioral sensing using smartphones.

    “This is particularly crucial in the field of behavioral sensing using smartphones since studies in this field frequently use small samples, are usually not cross-validated, and failure to replicate has already been observed (Ruwaard et al., 2016).”
  • Exploration in small datasets can lead to spurious findings, as seen in the failure to replicate a widely cited paper on phone sensor data to detect mood.

    “While exploration is essential to discovery, it is frequently done in small datasets. This can lead to spurious findings, as has recently been seen in the failure to replicate a widely cited paper (Likamwa et al., 2013) on the use of phone sensor data to detect mood (Ruwaard et al., 2016).”
  • Studies in behavioral sensing using smartphones are usually not cross-validated.

    “This is particularly crucial in the field of behavioral sensing using smartphones since studies in this field frequently use small samples, are usually not cross-validated, and failure to replicate has already been observed (Ruwaard et al., 2016).”

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Research works printed but not linked: 2

  1. Moskowitz, DS, 2006, J Psychiatry Neurosci, 31, 13
  2. Bouma, J, 1995, Het meten van symptomen van depressie met de CES-D: Een handleiding

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Authors
Asselbergs, J., Ruwaard, J., Ejdys, M., Schrader, N., Sijbrandij, M., & Riper, H.
Affiliations
  • Amsterdam Public Health (NL)
  • University of Southern Denmark (DK)
Corresponding author
Asselbergs, Joost
Venue
Journal of Medical Internet Research
Published
2016-03-29
Volume
18
Issue
3
Pages
e72
ISSN
1438-8871 (ISSN-L)
OpenAlex
W2321609854
Cited by
192
References
29
Citations by year
2026: 7 · 2025: 11 · 2024: 22 · 2023: 11 · 2022: 14 · 2021: 23 · 2020: 26 · 2019: 22 · 2018: 24 · 2017: 23 · 2016: 9
FWCI
23.73
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Journal of Medical Internet Research (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Pure Amsterdam UMC (publishedVersion, other-oa)
  • Amsterdam UMC (VU Amsterdam) - Institutional Repository (publishedVersion)
  • VU Research Portal (publishedVersion, other-oa)
  • University of Southern Denmark Research Portal (University of Southern Denmark) (acceptedVersion, cc-by)
  • Data Archiving and Networked Services (DANS) (submittedVersion, other-oa)
  • Data Archiving and Networked Services (DANS) (submittedVersion)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Mental Health Research Topics
  • Social Sciences › Psychology › Applied Psychology › Digital Mental Health Interventions
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Emotion and Mood Recognition
Keywords
ecological momentary assessment, unobtrusive assessment, mood prediction, smartphone sensor data, self-monitoring, valence and arousal, student population
MeSH terms
Smartphone, Adolescent, Adult, Affect, Data Collection, Depression, Female, Humans, Male, Netherlands, Pilot Projects, Psychometrics, Students, Cell Phone, Young Adult, Self Report, Text Messaging, Accelerometry, Mobile Applications

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