IADR Abstract Archives
Job Factors Questionnaire: Proposal and Validation of an Dental Version
Objectives: This study aimed to adapt the Job Factors Questionnaire to the field of dentistry, to evaluate its psychometric properties, to evaluate the students’ perception on work/study risk factors for musculoskeletal disorders, and to determine the influence of gender and academic level on perception.
Methods: A cross-sectional observational study was conducted with a nonprobabilistic sample. The sample was composed of Brazilian students of both genders from two dental schools (N=480). The adapted instrument “Work Factors that May Contribute to Musculoskeletal Disorders – Adapted Version for Dentistry (Dentistry Job Factors – JOB-D)” was applied. Its three-factor structure (Repetitiveness, Work Posture, and External Factors) was tested through confirmatory factor analysis (CFA). Convergent validity was estimated using the average variance extracted (AVE), discriminant validity was based on the correlational analysis of the factors, and reliability was assessed using Cronbach’s alpha coefficient (α) and composite reliability (CR). A causal model was created using structural equation modeling to evaluate the influence of gender and academic level on students’ perception.
Results: The students’ average age was 21.57 years (SD=2.98), and 74.8% were women. Higher scores were observed in the Work Posture factor items. The refined model presented proper fit to the studied sample. Convergent validity was compromised only for External Factors (AVE=0.47), and discriminant validity was compromised for Work Posture and External Factors (r2=0.69). Reliability was adequate. Academic level did not present significant impact on the factors. Women exhibited greater perception
Conclusions: The adaptation resulted in a valid and reliable instrument for assessing perception. Gender was found to significantly influence all three factors, and women exhibited greater perception of the risk factors.
Methods: A cross-sectional observational study was conducted with a nonprobabilistic sample. The sample was composed of Brazilian students of both genders from two dental schools (N=480). The adapted instrument “Work Factors that May Contribute to Musculoskeletal Disorders – Adapted Version for Dentistry (Dentistry Job Factors – JOB-D)” was applied. Its three-factor structure (Repetitiveness, Work Posture, and External Factors) was tested through confirmatory factor analysis (CFA). Convergent validity was estimated using the average variance extracted (AVE), discriminant validity was based on the correlational analysis of the factors, and reliability was assessed using Cronbach’s alpha coefficient (α) and composite reliability (CR). A causal model was created using structural equation modeling to evaluate the influence of gender and academic level on students’ perception.
Results: The students’ average age was 21.57 years (SD=2.98), and 74.8% were women. Higher scores were observed in the Work Posture factor items. The refined model presented proper fit to the studied sample. Convergent validity was compromised only for External Factors (AVE=0.47), and discriminant validity was compromised for Work Posture and External Factors (r2=0.69). Reliability was adequate. Academic level did not present significant impact on the factors. Women exhibited greater perception
Conclusions: The adaptation resulted in a valid and reliable instrument for assessing perception. Gender was found to significantly influence all three factors, and women exhibited greater perception of the risk factors.