Measuring proneness to distraction and inattention in motorcyclists

CASTRO, CÁNDIDA; LEDESMA, RUBEN DANIEL; TOSI, JEREMÍAS DAVID; SANCHEZ, NURIA; PADILLA, JOSE-LUIS

Liverpool

Congreso; Human Factors and Ergonomics Society, Annual Meeting 2023; 2023

Human Factors and Ergonomics Society

Research on motorcycle rider is critical to design and evaluate interventions targeting this vulnerable road user population. Developing specific measurement instruments is also important for that purpose.This study aimed to examine the psychometric properties of the ARDES-M (Attention-related Driving Errors Scale for Motorcycle riders) in Spain. ARDES-M is a self-report measuring attentional failures during motorcycle operation. ARDES-M was originally developed in Argentina.Aims: -To adapt the wording of the items to the Spanish context.-To explore the factor structure of ARDES-M scores.-To provide validity evidence of relations between the ARDES-M scoreswith other theoretically related constructs.Methods-Experts review: Adequacy of the ARDES-M (Attention-Related Driving Errors Scale-Motorcyclists)to the Spanish spoken in Spain and traffic habits in Spain was assessed by 15 experts.-Participants: 418 Spanish motorcyclists (age : 18 to 81 years old, M=39.45, SD.=13.74; 31% female. Most participants ride motorcycles regularly. 78% had ridden a motorcycle for more than 3 years.Instruments: Attention-related driving error scale for motorcycle riders (ARDES-M); Attention-related Cognitive Errors Scale (ARCES); Index of Distracting Activities (IDA); Socio-descriptive and motorcycle-related variables.Procedure: Web questionnaire (QuestBack, 2019). Participant recruitment was done by a contracted online panel provider (Netquest).Results-Item-wording: Ten items (45%) received expert rating bellow 4/5 and required revisions.-Internal-structure: MAP, Parallel Analysis and Hull’s method suggest a one-factor solution (extraction method ULS, correlations matrix: polychoric). One factor solution Total variance accounted for 42% of total variance. All items had factor-loadings over .40 (range: .45 to .77).-Cronbach’s alpha: .89, 95% CI [.87, .90]. Corrected item-test correlations from .30 to .61.-Correlation with theoretically related variables: between ARDES-M and Involvement in Distracting Activities: rho=.37 (p