“…Several theoretical models include this aspect as a core driver of technology adoption (e.g., perceived usefulness in the Technology Acceptance Model, TAM, Davis et al, 1989; performance expectancy in the Unified Theory of Acceptance and Use of Technology, UTAUT, Venkatesh et al, 2003). Furthermore, empirical research has repeatedly shown that functionality of technical systems is highly relevant for technology acceptance, and adoption of technologies in general and conversational AI in specific (e.g., McLean & Osei-Frimpong, 2019; Moriuchi, 2019; Moussawi et al, 2020; Pitardi & Marriott, 2021; Shao & Kwon, 2021). Besides, for people who already use a (smart) technology, competence is an important driver of usage continuance intentions (e.g., Dehghani, 2018; Moussawi et al, 2022).…”