*2.3. Main Outcomes—Instruments*

Occupational balance was evaluated by the Occupational Balance Questionnaire (OBQ), designed by Wagman and Håkansson in 2014 [31] and validated for the Spanish population by Peral Gómez in 2017 [32]. This self-administered questionnaire includes 13 items and explores the balance between the different types of activities, their significance, time spent on each activity, and perceived satisfaction. Each item must be answered using a six-point Likert scale, according to the degree of agreement with the content of the sentence, where 0 corresponds to "completely disagree" and 5 to "totally agree." The total score can range from 0 to 65, with higher scores indicating greater occupational balance [31]. Participants had to answer this questionnaire twice. In the first questionnaire, their responses had to refer to the week before the forced home confinement, while in the second one, responses referred to the time of the survey completion. The variation in occupational balance was the main outcome of the study, which was assessed by calculating the differential scores between each questionnaire.

Other variables were collected through an ad hoc questionnaire, previously piloted in a sample of 15 people, who were not part of the subsequent analysis. These variables were classified as sociodemographic (age, sex, marital status, employment status, educational level, home size and number of stays, number of people who make up the family nucleus, possibility of private access to the outside, setting), or COVID-19-related aspects (days of confinement at the time of completing the questionnaire, employment status, telecommuting, suffering or having suffered from COVID-19, experiencing required home isolation, perception of the information received).
