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Evaluating reactivity to ecological momentary assessment during smoking cessation
Paul J Rowan1, Ludmila Cofta-Woerpel, Carlos A Mazas
1Division of Management, Policy, and Community Health, University of Texas School of Public Health, Houston, TX 77030, USA. paul.j.rowan@uth.tmc.edu
Experimental and Clinical Psychopharmacology
|August 21, 2007
Summary
Ecological momentary assessment (EMA) may cause reactivity in addiction research. While abstinence rates were unaffected in smokers, some psychological measures showed minor changes, suggesting further investigation is needed.
Area of Science:
- Behavioral Science
- Psychology
- Public Health
Background:
- Ecological momentary assessment (EMA) enables real-time data collection in natural settings, enhancing the analysis of addictive behaviors.
- EMA minimizes recall biases but raises concerns about measurement reactivity due to intensive monitoring.
Purpose of the Study:
- To investigate whether EMA, using palmtop computers, induces measurement reactivity in smokers attempting to quit.
- To compare smoking-related outcomes between participants using EMA and a no-EMA control group.
Main Methods:
- 96 smokers motivated to quit were randomized into three groups: EMA before quit date, EMA after quit date, and no EMA.
- Data collection included event-contingent and random assessments, measuring abstinence, withdrawal, self-efficacy, motivation, affect, and temptations.
Main Results:
- No significant differences in abstinence rates were observed between EMA and no-EMA groups at 7 and 28 days postcessation.
- Some psychological subscales showed significant differences between groups at the first and third assessment times, suggesting potential reactivity.
Conclusions:
- EMA did not impact abstinence rates in this smoking cessation study.
- Evidence for EMA-induced reactivity is inconclusive due to inconsistent findings across assessment times, warranting further research.
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