Table 3.

An overview of the theoretical foundations of low-income older adults’ technology adoption studies.

Theory/Framework	Description	Application	Study
Technology Acceptance Model (TAM) [41]	This model suggests that two key beliefs (i.e., perceived ease of use and perceived usefulness) leads to attitude, followed by intention and behavior.	The study examined how older adults' characteristics are associated with perceived usefulness and usability. However, TAM was not used to explain how perceived usefulness and perceived ease of use influence technology use behavior.	[55,57]
		The model was used to understand how and why perceived usefulness and perceived ease of use influence technology use behavior.	[65]
Person-Environmental Interaction Model [71]	This model suggests that behavior and well-being is largely influenced by the degree of fit between personal needs and environmental resources.	The model was used to provide a conceptual framework to explain how personal and environmental factors influence the use of technology.	[55,57]
Diffusion of Innovation [72]	This theory seeks to explain how, why, and at what rate people adopt innovations (e.g., technologies) and suggests that there are five adopter categories (i.e., innovators, early adopters, early majority, late majority, and laggards).	The theory was used as a backdrop to distinguish older adults who were early adopters and non-adopters. However, existing technology acceptance constructs drawing upon this theory (i.e., ease of use, relative advantage, values and preferences, compatibility, complexity, and trialability [42] were not applied in the investigation.	[62]