計畫行為理論

計畫行為理論 (Theory of Planned Behavior, TPB) 是一個被廣泛應用於預測和改變人類行為的理論框架。這個理論指出,行為意圖 (behavioral intention) 是表現某個行為最直接的決定因素,而行為意圖受到三個背景因素的影響:對行為的態度 (attitude toward the behavior)、知覺行為控制 (perceived behavioral control)以及主觀規範 (subjective norm) 。

graph LR
    A["對行為的態度 \n(Attitude toward the behavior, ATB)"] --> BI["行為意圖 \n(Behavioral Intention, BI)"]
    SN["主觀規範 \n(Subjective Norms, SN)"] --> BI
    PBC["知覺行為控制 \n(Perceived Behavioral Control, PBC)"] --> BI
    PBC --> B["行為 (Behavior, B)"]
    BI --> B

各因素說明如下:


參考文獻

Ajzen, I. (1991). The theory of planned behavior. Organizational Behavior and Human Decision Processes, 50(2), 179–211. https://doi.org/10.1016/0749-5978(91)90020-T

Ajzen, I. (2011). The theory of planned behaviour: Reactions and reflections. Psychology & Health, 26(9), 1113–1127. https://doi.org/10.1080/08870446.2011.613995

Ajzen, I. (2020). The theory of planned behavior: Frequently asked questions. Human Behavior and Emerging Technologies, 2(4), 314–324. https://doi.org/10.1002/hbe2.195