The Modified E-Cigarette Evaluation Questionnaire: Psychometric Evaluation of an Adapted Version of the Modified Cigarette Evaluation Questionnaire for Use With Adults Who Use Electronic Nicotine Delivery Systems.

Although the MCEQ has been adapted in previously published studies to assess the subjective reinforcing and aversive effects of vaping, the psychometric foundation necessary for doing so had not been established. We showed that the MECEQ can be scored using the original five-factor MCEQ format or using a newly identified four-factor structure. Both versions evidenced construct validity, internal consistency, measurement invariance (permitting between-group comparisons), and concurrent validity with vaping-related outcomes. Results strengthen the interpretability of previously published work using the five-factor MCEQ structure and provide an alternative scoring approach for vaping-specific subjective effects.