Animal impact in real‐life:Study protocol for an ecological momentary assessment study on the role of animal characteristics in the relationship between companion animals and mental wellbeing

The contribution of companion animals to human mental wellbeing has received an increasing amount of scientific interest. Research findings concerning the nature of this relationship are however mixed. Variability in behavior and characteristics of the animal might explain this heterogeneity. The main aim of the present study is to investigate the association between companion animals and mental wellbeing in daily life and the role that animal characteristics play in this association, using an ecological momentary assessment approach. The sample will comprise of adult owners of a dog and/or a cat. Participants will start with a baseline assessment including demographic characteristics of the owner and the animal, as well as the C-BARQ or Fe-BARQ to assess general behavior of the animal. After the baseline assessment, a signal-contingent scheme with semi-random intervals will be used to examine human–animal interaction (HAI) in the natural setting of pet-owners' daily lives. Participants will complete up to ten short assessments per day over the course of 5 days, reporting on the presence of-, interaction with-, and behavior of the companion animal. They also report on stressful activities and events, and on their current positive and negative affect. Multilevel regression analysis will be used to investigate the relationship between HAI, animal characteristics and mental wellbeing. With this study we hope to provide insight into the type of animal, behavior of the animal and specific elements of interaction with an animal, and their potential associations with human wellbeing. The knowledge gathered in this study will add to unraveling mechanisms underlying HAI and help to identify in which contexts and under what conditions HAI can have the greatest impact