In the TAM structural model, satisfaction mediated sustained use: usability strongly predicted usefulness (β = 0.93), usefulness predicted satisfaction (β = 0.76), but usefulness did not directly predict use intention (β = 0.02, p = .896)¶

Claim · All claims
Evidence · 1 study (2 entries) · causal r2 · q2
Currency · newest study 2026 · not yet checked against its sources · not reviewed by a person

Subclaims¶

q2 i? Usability had a strong significant positive effect on usefulness (β = 0.93, p < .001), and usefulness significantly influenced satisfaction (β = 0.76, p < .001). → Li 2026 q2 i? Satisfaction strongly predicted use intention (β = 0.76, p < .001) and usage (β = 0.60, p < .001), while several direct paths were not significant. → Li 2026 (2)

Evidence¶

Li 2026¶

Li, X., Liu, Z., Jiang, S., Chen, J., & Chen, W. (2026). The impact of an LLM-based educational agent on learning achievement, cognitive dynamics, and student perceptions in computer science education. International Journal of STEM Education. https://doi.org/10.1186/s40594-026-00641-y

q2 · i? · causal · r2

SEM (semopy v2.3.11) on 151 valid survey responses, acceptable fit (χ2/df = 2.994, CFI = 0.923, TLI = 0.906, RMSEA = 0.105), shows usability strongly predicted usefulness and usefulness predicted satisfaction, while direct effects on use intention and usage "did not reach the significance level".

"Usability had a strong and significant positive effect on usefulness (β = 0.93, p < .001). Usefulness, in turn, significantly influences satisfaction (β = 0.76, p < .001), although its direct effects on use intention ( β = 0.02, p = .896) and usage (β = 0.39, p = .053) did not reach the significance level."

Li 2026 (2)¶

Li, X., Liu, Z., Jiang, S., Chen, J., & Chen, W. (2026). The impact of an LLM-based educational agent on learning achievement, cognitive dynamics, and student perceptions in computer science education. International Journal of STEM Education. https://doi.org/10.1186/s40594-026-00641-y

q2 · i? · causal · r2

SEM path analysis identifies satisfaction as "a critical mediating factor" with strong direct effects on use intention (β = 0.76, p < .001) and usage (β = 0.60, p < .001); direct paths from usability to satisfaction, usefulness to use intention, and use intention to usage were not significant.

"Satisfaction serves as a critical mediating factor, exhibiting a strong direct impact on both use intention (β = 0.76, p < .001) and usage (β = 0.60, p < .001)."

Discussion¶

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