Validating and Dialectical Coaching Strategies in a Virtual Coach for Obese Emotional Eaters 67 3 For the vignette study, we will use Qualtrics – a tool to interrogate experiences and to distribute questionnaires [36]. C | Questionnaires and measures After answering the questions on the vignettes, participants will be referred to sequential inquiries to get to know them better: “What type of eater are you?” on eating behaviours, “Who are you?” on personality traits and “How do you feel at the moment?” on current emotions: 1 the Dutch Eating Behavior Questionnaire (DEBQ) [26] with 33 questions to determine which eating behaviour out of emotional, external, and restraint eating behaviour is prevalent, using a 5-point Likert scale (1=never; 5=very often); 2 The Quick Big Five Personality Test [27], based on the five-factor model that describes five broad trait dimensions, to identify the personality traits neuroticism, extraversion, openness to experience, agreeableness, and conscientiousness, using a 5- point Likert scale (1=does not apply; 5=applicable). The results of this questionnaire will give us more clues about what personality traits will be suitable for the application; 3 The Positive and Negative Affect Scales (PANAS) [37], containing 20 feelings and emotions the participants experience at this particular moment, using a 5-point Likert scale (1=very slightly or not at all; 5=extremely). During the whole time span of the research study, namely seven days, some Ecological Momentary Assessments [29-30] will be carried out. Participants receive text messages (SMS) on a daily basis, with an invitation to log in to the application and answer to just one question: “Did you have cravings / have a binge today?’ In case of a “YES”, participants will be redirected to a questionnaire named emo.analyser, the trying-plane for the future emo.analyser application. In this questionnaire, participants will be asked to fill in what happened right before they gave in to a binge, and which emotions/feelings they were experiencing. In this chain of events and emotions, they analyse the vulnerabilities that made them open to experiencing specific events, developing strong feelings and emotions over it, and making them giving in to binges. In case of a “NO” participants will be invited to answer some additional questions. D | Methods The target group consists of emotional eaters (N=45), women, age 18 years and upwards. Participants are recruited via a Dutch franchise organisation of dietitian nutritionists, who are specialised in treating emotional eating behaviours.
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