Emotion, Aging, and Forgiveness: Protocol for a Feasibility of Randomized Controlled Trial

EFI is a self-report measure designed to measure the level of forgiveness in response to a specific offense. The EFI consists of 60 items divided into three 20-item subscales that assess affect, behavior, and cognition related to forgiveness, using a 6-point Likert scale. Scores range from 60 to 360, with higher scores indicating higher levels of forgiveness.

The Letting Go is a self-report instrument comprising a single item that evaluates the extent to which individuals have released their negative emotions toward the injurer. Responses are measured on a Likert scale ranging from 1 to 5.

The Unfinished Business Feelings and Needs Scale (UFB FN-Greenberg et al., 2008; Singh, 1994) consists of a 6-item scale designed to measure the extent to which an individual who has experienced an unfair situation feels acceptance and empathy toward the person who has harmed them, utilizing a 5-point Likert scale.

The European Portuguese World Health Organization Quality of Life Assessment in Older Adults (WHOQOL-OLD) (Power et al., 2005; Vilar et al., 2016) comprises 28 items classified on a five-point scale and encompassing seven domains: sensory, autonomy, activities, social, death, intimacy, and family life (Vilar et al., 2016).

The Geriatric Depression Scale-15 (GDS-15; Matos et al., 2019; Yesavage & Sheikh, 1986) is specifically designed for screening depressive symptoms in older adults. It consists of 15 straightforward questions, each requiring a simple Yes or No response. The scale ranges from zero (indicating no depressive symptoms) to 15 points (representing the highest severity of depressive symptoms), with each affirmative response scored as 1 point. The cut-off points are defined as follows: 0 to 4 for the absence of depressive symptoms, 5 to 8 for mild symptoms, 9 to 11 for moderate symptoms, and 12 to 15 for severe symptoms.