Cited by 1,995Health disparities and outcomesAttachment and Relationship DynamicsDeath Anxiety and Social Exclusion

A Meta-Analysis of Interventions to Reduce Loneliness

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Masi, Christopher M., Chen, Hsi-Yuan, Hawkley, Louise C., Cacioppo, John T.·2011·Personality and Social Psychology Review

Abstract

Social and demographic trends are placing an increasing number of adults at risk for loneliness, an established risk factor for physical and mental illness. The growing costs of loneliness have led to a number of loneliness reduction interventions. Qualitative reviews have identified four primary intervention strategies: (a) improving social skills, (b) enhancing social support, (c) increasing opportunities for social contact, and (d) addressing maladaptive social cognition. An integrative meta-analysis of loneliness reduction interventions was conducted to quantify the effects of each strategy and to examine the potential role of moderator variables. Results revealed that single-group pre-post and nonrandomized comparison studies yielded larger mean effect sizes relative to randomized comparison studies. Among studies that used the latter design, the most successful interventions addressed maladaptive social cognition. This is consistent with current theories regarding loneliness and its etiology. Theoretical and methodological issues associated with designing new loneliness reduction interventions are discussed.

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Crossref · 10.1177/1088868310377394

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  • Some technological interventions for reducing loneliness, as well as animal therapy or robot pets, were not found to significantly reduce loneliness.

    “in contrast, some technological interventions for reducing loneliness, as well as animal therapy or robot pets, were not found to significantly reduce loneliness (Masi et al. 2011; Veronese et al. 2021), although other studies find more promising results of such interventions with older adults (Banks, Willoughby, and Banks 2008; Chen et al. 2020; Gasteiger et al. 2021).”

    From AI Companions Reduce Loneliness (2024) · cites this paper as Masi et al. 2011

    The Results (Studies with a Randomized Group Comparison Design; page unavailable) list Banks et al. (2008) among six studies that reduced loneliness; the Method (Primary Effect Size; page unavailable) says its primary intervention used a real dog. The Discussion says technology did not add benefit in randomized studies, not that technology-based interventions failed to reduce loneliness, and reports greater efficacy for them in non-randomized studies. (LLM, conf=0.88)

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  • Chronic loneliness is closely associated with depressive symptoms, maladaptive social cognition, and poor recovery following a mental health crisis.

    “As a potential stressor, chronic loneliness is closely associated with depressive symptoms, maladaptive social cognition, and poor recovery following a mental health crisis.82–84”

    From A Longitudinal Study of Loneliness Before the End of the COVID-19 Pandemic: Trajectories, Predictors, and Impact on Chinese Adolescent Mental Health (2024) · cites this paper as [83]

    The Health Effects section says loneliness predicts depressive symptoms and describes negative social cognitions associated with loneliness. The Conclusion also links loneliness to maladaptive social cognition. Neither passage establishes an association with poor recovery following a mental health crisis; the Discussion’s references to “recovery” concern improvement in loneliness after interventions, not recovery from a crisis (page numbers unavailable). (LLM, conf=0.88)

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  • Interventions focusing on improving social skills and social support are successful strategies to alleviate loneliness among adults, as discussed in a previous meta-analysis.

    “Interventions that focus on improving social skills and social support are one of the successful strategies that have been used to alleviate loneliness among adult population, as discussed in a previous meta-analysis [163].”

    From Association between friendship quality and subjective wellbeing among adolescents: a systematic review (2022) · cites this paper as [163]

    The Results (Studies with a Randomized Group Comparison Design) report a significant reduction in loneliness for social-support interventions, but not for social-skills interventions (mean effect size 0.017, p = 0.90). The paper discusses earlier studies in which social-skills training helped, but its own meta-analysis does not establish both strategies as successful among adults. (LLM, conf=0.89)

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  • Most current interventions assume loneliness results from lack of opportunities or competencies to form close relationships.

    “Most current interventions assume loneliness results from lack of opportunities or competencies to form close relationships (Masi et al., 2011).”
  • Cognitive approaches (i.e., addressing maladaptive social cognition) were most effective in reducing loneliness compared to other strategies, such as social support.

    “a meta-analysis by Masi et al. (2011) revealed that cognitive approaches (i.e., addressing maladaptive social cognition) were most effective in reducing loneliness compared to other strategies, such as social support.”

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Cites

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Research works printed but not linked: 7

  1. Allen-Kosal LM 2008 Cooperative Learning and Cooperative Pre-Training: An Intervention for Loneliness in Elementary Students Unpublished Dissertation Central Michigan University Mount Pleasant, Michigan
  2. Peplau LA Perlman D 1982 Loneliness: A sourcebook of current theory, research, and therapy New York Wiley
  3. Rook KS Peplau LA Peplau LA Perlman D 1982 Perspectives on helping the lonely Loneliness: A sourcebook of current theory, research and therapy New York Wiley
  4. Schneider B Waite LJ 2005 Being together, working apart Cambridge Cambridge University Press
  5. Seepersad SS 2005 Understanding and Helping the Lonely: An Evaluation of the Luv Program Unpublished Dissertation University of Illinois at Urbana-Champaign Urbana
  6. van Kordelaar KACM Stevens NL Pleiter A 2004 Good Company in a Big Home described in Loneliness Interventions among older adults: Sense or nonsense? Fokkema CM van Tilburg TG Tijdschrift Voor Gerontologie en Geriatrie 38 4 185 203 17879823
  7. Young JE Peplau LA Perlman D 1982 Loneliness, depression and cognitive therapy: Theory and application Loneliness: A sourcebook of current theory, research and therapy 379 406 New York Wiley

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Authors
Masi, C. M., Chen, H.-Y., Hawkley, L. C., & Cacioppo, J. T.
Affiliations
University of Chicago (US)
Corresponding author
Masi, Christopher M.
Venue
Personality and Social Psychology Review
Published
2010-08-17
Volume
15
Issue
3
Pages
219-266
ISSN
  • 1088-8683 (ISSN-L)
  • 1532-7957
OpenAlex
W2138867401
Cited by
1,995
References
168
Citations by year
2026: 149 · 2025: 211 · 2024: 212 · 2023: 205 · 2022: 214 · 2021: 231 · 2020: 221 · 2019: 130 · 2018: 90 · 2017: 92 · 2016: 54 · 2015: 67 · 2014: 46 · 2013: 40 · 2012: 18
FWCI
4.14
Type
journal article
Language
en
Open access
Locations
  • Personality and Social Psychology Review (publishedVersion)
  • PubMed (publishedVersion)
  • Europe PMC (PubMed Central) (acceptedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institutes of Health (Z99 RG999999, 5r01ag036433-02)
  • National Institute on Aging (R01-AG036433, K08AG027200, R01AG034052)
Topics
  • Social Sciences › Health › Health disparities and outcomes
  • Social Sciences › Psychology › Social Psychology › Attachment and Relationship Dynamics
  • Social Sciences › Psychology › Social Psychology › Death Anxiety and Social Exclusion
Keywords
loneliness, social skills training, social support, social contact, intervention effectiveness, moderators, randomized controlled trials, non-randomized studies
MeSH terms
Adult, Health Promotion, Humans, Loneliness, Psychotherapy, Research Design, Social Adjustment, Social Perception, Social Support

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