Positive Affect Treatment for Spanish-Speaking Individuals

8-item self-report measure used to capture satisfaction with services. Each item is scored on a four-point scale from 1 to 4, with a total score range from 8 to 32. Higher scores suggest greater satisfaction with the treatment.

12-item questionnaire used to assess the participants' therapeutic alliance ratings along three domains: goal, task, and bond.

Treatment attrition will be calculated as the dropout percentage after enrollment.

Treatment attendance will be operationalized as the total number of treatment sessions attended out of the 15 planned sessions.

After each treatment session, the participant's practice completion (e.g., pleasant activities, savoring exercises) will be measured using a 0-100% scale, with 0% indicating that they did not complete any practice outside of therapy sessions, and 100% indicating that they completed all scheduled practice. Overall practice completion will be calculated as the average of practice outside of sessions completed across 14 sessions, since no homework will be assigned for the first session.

6-item self-report measure, divided into credibility and outcome expectancy questions.

Feasibility of recruitment will be examined using three parameters: number of individuals screened per month, number of participants enrolled per month, and average time from screening to enrollment including the reason for any long delays. In addition, the reason for lack of enrollment (e.g., not eligible, not interested, lost to follow-up) will be recorded.

Self-report measure of positive affect. The scale includes 20 items, 10 indicating positive affect (e.g., excited) and 10 corresponding to negative affect (e.g., scared). Each item is rated on a five-point scale, with higher scores indicating a higher level of positive or negative affect.

21-item self-report measure of symptoms of depression (score range: 0-21), anxiety (score range: 0-21), and stress (score range: 0-21), higher scores indicate higher severity and frequency.

Participants will complete written open-ended items in Spanish asking about (1) treatment feasibility, (2) treatment acceptability, (3) treatment satisfaction, (4) treatment comprehension, (5) perceived effectiveness, (6) suggestions, and (7) other general comments.

3-item measure that assesses the severity of distress resulting from impairment in work, family life/home responsibilities, and social/leisure activities.

Structured clinical interview used to assess current (not past) clinical diagnoses. At a 1-month follow-up assessment, the study staff will conduct the SCID-5-RV without the exclusion criteria modules to describe the participants' clinical diagnoses after treatment.

Interviewer ratings of interest, pleasure, and motivation in hobbies/pastimes, foods/drinks, social activities (score range: 1-12), higher scores indicate lower anhedonia

12-item self-report questionnaire used to measure stress arising from adapting to a new culture

Item 9 of the Beck Depression Inventory-II (BDI-II) will be used to assess suicidality before each treatment session. The item is rated on a four-point scale from 0 to 3, with higher scores indicating greater severity.