Agreement between the printed version versus the electronic version of the Webcas Electronic Questionnaire

Introduction: This study aimed to analyse the agreement between the printed version (PV) and the electronic version (EV) of the WebCas questionnaire. Method: A total of 153 elementary school students participated (56.2% boys and 43.8% girls). The EV was applied at two different time points, with a seven-day interval (test and retest). The WebCas questionnaire was administered in both printed and electronic versions. Weighted Kappa (k), Pabak Kappa (Pabak), and the concordance correlation coefficient (CCCρc) were used for statistical analysis, employing MedCalc 15.2 software, with a significance level of p < .05 Results: The weighted Kappa values indicated strong agreement (91.6%, k > .80), except for the variables “alcohol consumption in the last 30 days” (k = .44) and “daytime sleepiness” (k = .10), which showed moderate and weak agreement, respectively. The Pabak percentages showed values (Pabak > .60) in five variables. The highest agreement values were observed in the consumption of legal drugs: intoxication 98.7%, alcohol (last 30 days) 89.5%, smoking 86.3%, and alcohol in doses 84.3%. The lowest values were found among food consumption frequency variables: fruit 37.3%, vegetables 37.3%, sweets 47.1%, snacks 54.9%, and soft drinks 38.6%. Conclusions: The correlations between the WebCas application replicas were moderate to strong for most variables, demonstrating satisfactory values and potential for assessing health-related behaviours.