Table 1.

Overview of points of data collection and surveyed measures.

	Point of data collection
Surveyed Measure	W0	W1	W2	D1–14
Demographical data	X
Individual tendency to anthropomorphize	X
Individual need to belong	X
Desire to socialize	X	X	X
Interaction duration (duration in minutes for each day of the past week)		X	X
Social connectedness to the chatbot		X	X
Perceived anthropomorphism		X	X
Perceived social presence		X	X
Social behavior (duration in minutes for each day of the past week)		X	X
Interaction intensity				X
Closeness to chatbot				X

W0, a baseline questionnaire prior to the chatbot use; W1, a questionnaire after the first week of chatbot use; W2, a post-questionnaire after the second week of chatbot use; D1–D14, short daily questionnaires.