Homayoun Sadeghi-Bazargani; Morteza Haghighi; Seyed Taghi Heydari; Hamid Soori; Forouzan Rezapour; Seyed Abbas Motevalian; Reza Tabrizi; Minoo Mohammadkhani
Volume 8, Issue 4 , October 2020
Abstract
Objective: Pedestrians are road users vulnerable to traffic injuries and fatalities. This study aimed to develop and validate a pedestrian behavior questionnaire to be used in Iran.Methods: In this cross-sectional study, the initial questionnaire was designed based on the evaluation of previous ...
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Objective: Pedestrians are road users vulnerable to traffic injuries and fatalities. This study aimed to develop and validate a pedestrian behavior questionnaire to be used in Iran.Methods: In this cross-sectional study, the initial questionnaire was designed based on the evaluation of previous studies conducted world-wide or in Iran. The initial pack included 127 items. After the assuring the face validity of the questionnaire, 27 experts’ opinions in the field of traffic was obtained for assessing/improving the content validity. To test the reliability of the questionnaire, the test-retest method and internal consistency assessment were used. To evaluate the structural validity, the Exploratory Factor Analysis (EFA) using the principal component and the Varimax rotation was applied.Results: After completing the face validity and after summarizing the experts’ suggestions, 12 questions were deleted. By calculating the content validity ratio and coefficient, 20 and 17 were removed. Also, the average content validity coefficient regarding relevancy, clarity and overall average were 0.86, 0.88, and 0.87, respectively. The Cronbach’s alpha coefficient was 0.84. In the last stage and according to the results of the factor analysis, five factors violations, distraction, positive behaviors (group1), positive behaviors (group2) and Aggressive behaviors) were identified from the 29-items questionnaire, which explained 98% of the total variance.Conclusion: Considering the necessity of using a verified and validated tool for planning and evaluating effective interventions for pedestrians is inevitable. The tool designed in the study was found to be valid and reliable for use to measure pedestrian’s behavior and planning to modify high-risk behaviors and enhance safe pedestrian behaviors.
Mahdi Moshki; Abdoljavad Khajavi; Homayoun Sadeghi-Bazargani; Shahram Vahedi; Saeid Pour-Doulati
Volume 8, Issue 2 , April 2020, , Pages 98-106
Abstract
Objective: To develop a self-completion pedestrians’ red-light violation behavior questionnaire (PRVBQ) based on the theory of planned behavior (TPB) and assess the content validity and reliability. Methods: This study was conducted in three phases of (i) PRVBQ development study; (ii) Content validity ...
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Objective: To develop a self-completion pedestrians’ red-light violation behavior questionnaire (PRVBQ) based on the theory of planned behavior (TPB) and assess the content validity and reliability. Methods: This study was conducted in three phases of (i) PRVBQ development study; (ii) Content validity study including face validity; and (iii) Reliability assessment. The directed content analysis method was used for the analysis of the qualitative interviews. The item impact score was used for face validity. Content validity index (CVI) in the item level and average scale level, and content validity ratio (CVR) were determined. Intra-class Correlation Coefficient (ICC), and Cronbach’s alpha was assessed for test-retest reliability and internal consistency respectively. Results: Draft questionnaire including 86 items was constructed. Sixteen items were eliminated due to low face and content validity, remaining 70 items in total. The PRVBQ was rated as having good content validity (individual items CVI ranged from .80 to 1, and overall PRVBQ CVI-Average=0.95, p=0.05). The direct measures (reflective indicators) showed excellent internal consistency with Cronbach’s alpha=0.9. All items showed excellent agreement. Conclusion: This study using a comprehensive process of development and assessment of content validity and reliability developed a content valid and reliable questionnaire predicting pedestrians’ red light violation behavior.
Faramarz Pourasghar; Jafar Sadegh Tabrizi; Alireza Ala; Amin Daemi
Volume 4, Issue 4 , October 2016, , Pages 211-215
Abstract
Objective: To validate the triage ratings performed by the Electronic Triage System (ETS) using hospitalization, length of stay, resource use, in-hospital mortality and patient bills as outcome measures.Methods: In this retrospective cross-sectional study the medical records of 387 patients were reviewed ...
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Objective: To validate the triage ratings performed by the Electronic Triage System (ETS) using hospitalization, length of stay, resource use, in-hospital mortality and patient bills as outcome measures.Methods: In this retrospective cross-sectional study the medical records of 387 patients were reviewed in a one-week period. The data included triage category and the outcome measures were hospitalization, length of stay, in-hospital mortality, patient bill, and used resources. The association between the triage category and hospitalization and death was assessed. The association between the triage category and the number of resources, length of stay, and the bill was also assessed.Results: The mean age of the patients was 43.65 ±21.17 years. Women comprised 40% (n=155) of 387 people who were included in the study. The frequency of Emergency Severity Index (ESI) 1, 2, 3, 4 and 5 categories were 18, 61, 127, 181 and 0 respectively. Phi and Cramer’s V for hospitalization and death were 0.365 (p<0.001) and 0.305 (p<0.001). Spearman's rho for bill, length of stay, and resource use were -0.483 (p<0.001), -0.228 (p<0.001) and -0.490 (p<0.001). The association between triage category and resource consumption was stronger than other outcomes.Conclusion: The ETS was valid in predicting all studied patient outcomes. The ETS has also the advantages of providing quick reports, giving feedback and providing data for research purposes.
