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Global Health Research and Policy

, 1:15

First Online: 05 October 2016Received: 25 February 2016Accepted: 23 September 2016DOI: 10.1186-s41256-016-0015-6

Cite this article as: Xiao, H., Peng, M., Yan, H. et al. glob health res policy 2016 1: 15. doi:10.1186-s41256-016-0015-6


BackgroundFurther 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.

MethodsWe 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 n = 2238, 51 % male, mean age 13.13 ± 1.10 recruited in Hubei, China was used to evaluated the validity and reliability of the scale.

ResultsThe 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, p < 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 p < 0.05.

ConclusionsThis 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.

KeywordsSchistosomiasis Protection Motivation Theory Instrument Adolescents AbbreviationsAHBSthe Adolescents Health and Behavior Survey

CFAConfirmatory Factor Analysis

CFIComparative Fit Index

GFIGoodness of Fit Index

GISGeographic Information System

HIV-AIDSHuman Immunodeficiency Virus-Acquired Immunodeficiency Syndrome


KMOKaiser-Meyer-Olkin Test

PMTProtection Motivation Theory

RMSEARoot Mean Square Error of Approximation

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Autor: Han Xiao - Minjin Peng - Hong Yan - Mengting Gao - Jingjing Li - Bin Yu - Hanbo Wu - Shiyue Li


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