Table 1.

Versions of the UCLA Loneliness Scale (UCLA-LS) used to measure loneliness (after bereavement).

UCLA-LS	# Items	Scale	Range
Revised UCLA-LS or UCLA-LS Version 3 (Hansson et al., 1986; Murphy, 1986; Gfellner and Finlayson, 1988; Kovarsky, 1989; Byrne and Raphael, 1997; Henderson et al., 2004; Stein et al., 2009; Knowles and O'Connor, 2015; Yan and Bonanno, 2015; Spino et al., 2016; Cao et al., 2020)	20 items	never, rarely, sometimes, often/always	0–80
UCLA-LS-Short Form (Lund et al., 2010)	13 items	never, rarely, sometimes, always	13–52
UCLA-LS-8 (Lee, 2019)	8 items	strongly disagree (1)—strongly agree (5)	8–40
UCLA-LS-4 (Zettel and Rook, 2004)	4 items	agree a lot (1)—disagree a lot (5)	4–20
UCLA-LS-4 (Morgan et al., 1997)	4 items	never, rarely, sometimes, often	4–16
UCLA-LS-5 (Sun et al., 2012)	5 items	agree almost always (1) to almost never (5)	5–25
UCLA-LS-3 (Carr et al., 2018)	3 items	hardly ever, some of the time, or often	0–9