The study of human-robot interaction (HRI) currently lacks (i) clear understanding of the envisaged scope and format of the pluridisciplinary approach required by the domain, (ii) established set of methods and standards, and (iii) a joint terminological framework, or at least a set of analytical concepts and associated tests. This chapter aims to contribute to these three tasks. We begin with the observation that there is a need to define both the interdisciplinary scope of HRI research and its pluridisciplinary format, two tasks that are at the center of the new procedural paradigm of “Integrative Social Robotics”. These methodological reflections are further illustrated with a newly developed questionnaire, the AMPH. The AMPH contains a higher proportion of items tapping anthropomorphism towards artefacts than extant questionnaires. The analysis of AMPH (N = 339) pointed to a two-factor solution: anthropomorphism towards artefacts and anthropomorphism towards natural objects. These findings were further explored through triangulation with qualitative data. In the last section of the paper we discuss how the AMPH can be used to trace the distinction between humanizing and socializing (anthropomorphing and sociomorphing), and how qualitative and quantitative methods should be used in unison in HRI research to achieve more fine-grained analyses of relevant experiences. We argue, based on philosophical concept analysis and phenomenology, that the notion of anthropomorphization is far from clear and we must distinguish tendencies to humanize from tendencies to socialize, which comes in various subvarieties. In conclusion we consider whether our results suggest that HRI should aim for the high degree of pluridisciplinary integration associated with an “interdiscipline” or even a “transdiscipline.”