ESM assessments. ESM **data** were collected on personal digital assistants (PDAs), which signaled participants randomly eight times daily (between 10 a.m. and 10 p.m.) for one week to complete brief questionnaires. When signaled by the PDA, participants had 5 minutes to start the questionnaire. After this time window or the completion of the questionnaire, the PDA became inactive until the next signal. The complete list of ESM items can be found in Barrantes-Vidal et al. [31]. Note that all the ESM items used in the current study were answered on 7-point scales from "not at all" to "very much", with the exception of the social contact item, which was answered dichotomously (alone/with others).