A Meta-Analytic Study of Loneliness
The MASLO project is a large database that contains all studies that have assessed loneliness with a standardized measure. I have created this database by conducting a literature search in Psychinfo, ERIC, PubMed, and Web of Science. All 2,069 empirical studies that were published until 2013, spanning research across 55 different countries, were coded using a comprehensive coding manual. A literature update revealed an additional 560 studies published until 2016, which I am currently coding. Because of the broad scope of the MASLO database, the data can be used to examine a large variety of research questions.
Based on the MASLO database, three studies have already been conducted:
Maes, M., Van den Noortgate, W., Fustolo-Gunnink, S., Rassart, J., Luyckx, K., & Goossens, L. (2017). Loneliness in children and adolescents with chronic physical conditions: A meta-analysis. Journal of Pediatric Psychology, 42, 622-635. doi:10.1093/jpepsy/jsx046
Maes, M., Qualter, P., Vanhalst, J., Van den Noortgate, W., & Goossens, L. (2017). Gender differences in loneliness: A meta-analysis. Manuscript status: Submitted.
Maes, M., Nelemans, S. A., Danneel, S., Castilla, B. F., Van den Noortgate, W., Goossens, L., & Vanhalst, J. (2018). Loneliness and social anxiety across childhood and adolescence: Multilevel meta-analyses of cross-sectional and longitudinal associations. Manuscript status: Submitted.