Measuring Experiential Avoidance Using Ecological Momentary Assessments: A Study

[Speaker] Shima, Taiki:1
[Co-author] Honda, Hikari:1, Ouchi, Yuko:2, Saito, Junichi:1, Iwata, Ayaka:1, Kumano, Hiroaki:2
1:Graduate School of Human Sciences, Waseda University (Japan), 2:Faculty of Human Sciences, Waseda University (Japan)

This study aims to investigate the process of creation of the items that measure experiential avoidance (EA) used in the ecological momentary assessment (EMA). EMA is method using repeated collection of real-time data in natural environments. Items that predict mood improvement are defined as EA items in this study.

Fourteen undergraduate students with no knowledge of Acceptance and Commitment Therapy (female = 9, mean age = 19.50 ± 1.45) responded to questions when prompted and they feel unpleasant. They responded to two EA items and mood items. Hierarchical linear modeling was used for statistical analysis.

Here, the EA items predicted mood improvement (overall: R2 = .047, β = .217, p < .001, when mood < 4: R2 = .084, β = .290, p = .021). The results indicate that the EA items are available in EMA. Future research should examine prompt timing, question items, psychoeducational interventions, and EA criteria.
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