Mirzaei-Alavijeh Mehdi, Jalilian Farzad, Dragoi Elena-Niculina, Pirouzeh Razieh, Solaimanizadeh Laleh, Khashij Shima
1Social Development & Health Promotion Research Center, Health Institute, Kermanshah University of Medical Sciences, Kermanshah, Iran.
2Faculty of Chemical Engineering and Environmental Protection "Cristo for Simionescu", "Gheorghe Asachi" Technical University, BldMangeron no 73, 700050 Iasi, Romania.
Arch Public Health. 2020 Apr 10;78:19. doi: 10.1186/s13690-020-00400-7. eCollection 2020.
Air pollution is an environmental health issue that has received much attention due to its harmful effects on public health. The aim of this study was to determine the psychometric properties of the self-care behaviors related to air pollution protection. To this mean, questionnaire responses provided by Iranian college students were analyzed and a Health Belief Model (HBM) determined.
The self-care behavior related to air pollution protection was determined from responses from 301 university students using test item characteristics, face validity, reliability (internal consistency) and construct validity. Moreover, we carried out an exploratory factor analysis (EFA) to determine the factorial structure and explained variance.
Based on Eigenvalues of ≥1.00 and factor loadings of ≥0.40, seven factors were extracted. The calculated Kaiser-Meyer-Olkin value was 0.804. Overall, the seven factors explain 66.39% of the variance in the hypothesized model. Cronbach's alpha for the measured factors: the perceived susceptibility, severity, barriers, benefits, self-efficacy, cues to action and behavior were 0.85, 0.79, 0.86, 0.66, 0.74, 0.83, and 0.75, respectively.
The analysis of the questionnaire's reliability and validity properties resulted in good values. The questionnaire is a promising instrument to assess self-care behavior related to air pollution protection from the perspective of college students.
空气污染是一个环境卫生问题，因其对公众健康的有害影响而备受关注。本研究的目的是确定与空气污染防护相关的自我护理行为的心理测量特性。为此，对伊朗大学生提供的问卷回复进行了分析，并确定了健康信念模型（HBM）。
通过测试项目特征、表面效度、信度（内部一致性）和结构效度，从301名大学生的回复中确定与空气污染防护相关的自我护理行为。此外，我们进行了探索性因素分析（EFA）以确定因素结构并解释方差。
基于特征值≥1.00和因子载荷≥0.40，提取了七个因素。计算得到的Kaiser-Meyer-Olkin值为0.804。总体而言，这七个因素解释了假设模型中方差的66.39%。测量因素的Cronbach's alpha系数：感知易感性、严重性、障碍、益处、自我效能、行动线索和行为分别为0.85、0.79、0.86、0.66、0.74、0.83和0.75。
问卷信效度特性分析结果良好。该问卷是从大学生角度评估与空气污染防护相关的自我护理行为的一个有前景的工具。
