Xiao Han, Peng Minjin, Yan Hong, Gao Mengting, Li Jingjing, Yu Bin, Wu Hanbo, Li Shiyue
School of Health Science, Wuhan University, Wuhan, Hubei China.
Xuanwu Hospital, Capital Medical University, Beijing, China.
Glob Health Res Policy. 2016 Oct 5;1:15. doi: 10.1186/s41256-016-0015-6. eCollection 2016.
Further advancement in schistosomiasis prevention requires new tools to assess protective motivation, and promote innovative intervention program. This study aimed to develop and evaluate an instrument developed based on the Protection Motivation Theory (PMT) to predict protective behavior intention against schistosomiasis among adolescents in China.
We developed the Schistosomiasis PMT Scale based on two appraisal pathways of protective motivation- threat appraisal pathway and coping appraisal pathway. Data from a large sample of middle school students ( = 2238, 51 % male, mean age 13.13 ± 1.10) recruited in Hubei, China was used to evaluated the validity and reliability of the scale.
The final scale contains 18 items with seven sub-constructs. Cronbach's Alpha coefficients for the entire instrument was 0.76, and for the seven sub-constructs of severity, vulnerability, intrinsic reward, extrinsic reward, response efficacy, self-efficacy and response cost was 0.56, 0.82, 0.75, 0.80, 0.90, 0.72 and 0.70, respectively. The construct validity analysis revealed that the one level 7 sub-constructs model fitted data well (GFI = 0.98, CFI = 0.98, RMSEA = 0.03, Chi-sq/df = 3.90, < 0.001). Predictive validity showed that both the PMT instrument score and the 7 sub-construct scores were significantly correlated with the intention engaged in protective behavior against schistosomiasis ( < 0.05).
This study provides a reliable and valid tool to measure protective motivation in schistosomiasis prevention control. Further studies are needed to develop more effective intervention programs for schistosomiasis prevention.
血吸虫病预防工作的进一步推进需要新工具来评估保护动机，并促进创新干预项目的开展。本研究旨在开发并评估一种基于保护动机理论（PMT）的工具，以预测中国青少年针对血吸虫病的保护行为意图。
我们基于保护动机的两条评估途径——威胁评估途径和应对评估途径，开发了血吸虫病PMT量表。使用在中国湖北招募的大量中学生样本（n = 2238，51%为男性，平均年龄13.13 ± 1.10）的数据来评估该量表的有效性和可靠性。
最终量表包含18个条目，分为7个亚结构。整个量表的Cronbach's Alpha系数为0.76，7个亚结构（严重性、易感性、内在奖励、外在奖励、反应效能、自我效能和反应成本）的系数分别为0.56、0.82、0.75、0.80、0.90、0.72和0.70。结构效度分析表明，单一层级的7个亚结构模型与数据拟合良好（GFI = 0.98，CFI = 0.98，RMSEA = 0.03，Chi-sq/df = 3.90，p < 0.001）。预测效度表明，PMT工具得分和7个亚结构得分均与针对血吸虫病的保护行为意图显著相关（p < 0.05）。
本研究提供了一种可靠且有效的工具，用于测量血吸虫病预防控制中的保护动机。需要进一步开展研究，以制定更有效的血吸虫病预防干预项目。
