School of Behavioral Sciences, The Academic College of Tel Aviv-Yaffo, Tel Aviv, Israel.
Psychol Health. 2024 Dec;39(12):1689-1705. doi: 10.1080/08870446.2023.2196994. Epub 2023 Apr 5.
To compare the utility of Protection Motivation Theory (PMT) and the Theory of Planned Behaviour (TPB) for understanding diversity in adherence to COVID-19 behavioural guidelines.
A representative sample ( = 600) completed two online questionnaires: One that included measurements of PMT and TPB components that predict behaviour, and another (after one week) consisting of adherence to COVID-19 behavioural guidelines. TPB was represented by a single model, while PMT was represented by three models: Model 1, which did not include a measure of ; Model 2, which included protection motivation - represented by behavioural intentions; and Model 3, which was similar to Model 2 and included a direct link from self-efficacy to behaviour.
The TPB model displayed the best fit-to-complexity ratio (i.e. information criterion), and its capacity to explain adherence was similar to PMT Models 1 and 2, but lower than Model 3.
The findings highlight the need to reach a consensus regarding the definition and measurement of protection motivation. While the TPB model exhibited superior fit-to-complexity ratio, variance was better explained when self-efficacy was included, and interventions may benefit from targeting different constructs depending on the context.
比较保护动机理论（PMT）和计划行为理论（TPB）在理解 COVID-19 行为准则遵守多样性方面的效用。
一个有代表性的样本（n=600）完成了两个在线问卷：一个包括预测行为的 PMT 和 TPB 成分的测量，另一个（一周后）包括 COVID-19 行为准则的遵守情况。TPB 由一个单一的模型表示，而 PMT 由三个模型表示：模型 1 不包括保护动机的测量；模型 2 包括由行为意图表示的保护动机；模型 3 与模型 2 相似，并且包括从自我效能到行为的直接联系。
TPB 模型显示出最佳的拟合复杂度比（即信息准则），其对遵守的解释能力与 PMT 模型 1 和 2 相似，但低于模型 3。
研究结果强调需要就保护动机的定义和测量达成共识。虽然 TPB 模型表现出更好的拟合复杂度比，但当纳入自我效能时，方差得到了更好的解释，干预措施可能会受益于根据不同的情况针对不同的结构进行定位。
