The Influence of Web- Versus Paper-based Formats on the Assessment of Tobacco Dependence: Evaluating the Measurement Invariance of the Dimensions of Tobacco Dependence Scale

• Main Authors: Chris G. Richardson (Author), Joy L. Johnson (Author), Pamela A. Ratner (Author), Bruno D. Zumbo (Author)
• Format: Book
• Published: SAGE Publishing, 2009-01-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.
• Notes: 1178-2218
• Keywords: tobacco dependence; adolescent; web-based survey; internet; psychometrics; validity; measurement invariance; Public aspects of medicine; RA1-1270
• Source: Substance Abuse: Research and Treatment, Vol 3, Pp 1-14 (2009)

The purpose of this study was to examine the influence of mode of administration (internet-based, web survey format versus pencil-and-paper format) on responses to the Dimensions of Tobacco Dependence Scale (DTDS). Responses from 1,484 adolescents that reported using tobacco (mean age 16 years) were examined; 354 (23.9%) participants completed a web-based version and 1,130 (76.1%) completed a paper-based version of the survey. Both surveys were completed in supervised classroom environments. Use of the web-based format was associated with significantly shorter completion times and a small but statistically significant increase in the number of missing responses. Tests of measurement invariance indicated that using a web-based mode of administration did not influence the psychometric functioning of the DTDS. There were no significant differences between the web- and paper-based groups' ratings of the survey's length, their question comprehension, and their response accuracy. Overall, the results of the study support the equivalence of scores obtained from web- and paper-based versions of the DTDS in secondary school settings.