Abstract Loneliness, a complex emotional state stemming from unmet social and personal needs, impacts both mental and physical health. The De Jong Gierveld Loneliness Scale (DJGLS) is a concise tool designed to capture both emotional and social dimensions of loneliness. This study evaluated the DJGLS’s psychometric properties in the Czech Republic, including its factor structure, reliability, and associations with related constructs, encompassing 3911 Czech adults. Confirmatory Factor Analysis revealed that a second-order factor model comprising emotional and social loneliness factors demonstrated acceptable factor loadings and fit indices: ^2 χ 2 (43) 1081. 842; p α = 0. 83, McDonald’s ω = 0. 86) and good temporal stability (r = 0. 77). Furthermore, significant associations emerged between loneliness and anxiety, depression, self-esteem, and life satisfaction. In addition, evidence for convergent validity was demonstrated by moderate correlations between the DJGLS and the Three-Item Loneliness Scale. These findings support the DJGLS’s utility as a valid and reliable tool for assessing loneliness and its dimensions in the Czech Republic. Furthermore, they enhance understanding of its links to mental well-being.
Buchta et al. (2026) studied this question.