In this study we sought to collect evidence regarding the validity of the Comprehensive Inventory of Thriving (CIT), systematically reviewing studies that tested its psychometric properties (Study 1) and trying to replicate validity evidence collected across previous validation studies (Study 2). We found five studies that tested the validity of CIT scores through the collection of different kinds of evidence (score structure validity, convergent validity, discriminant validity, criterion-related validity, incremental validity, internal consistency, test-retest reliability). Results were often inconsistent across studies (especially for the score structure validity evidence). Using a sample of 483 Italian participants (63.0% female; aged 18–71 years), we replicated the tests performed in the previous validation studies. Findings suggest that the best fitting model is the one that (1) adds the overarching latent construct of thriving, which can be measured using the total scale score; and (2) merges the Skills and Flow factors in just one factor, named “Skills for Flow”. At the same time, the different kinds of validity evidence collected both in previous validation studies and in the current replication study indicate high overlap among thriving sub-dimensions and poor validity evidence. We concluded that the CIT in its present form is not an adequate instrument to assess thriving, thus mono-dimensional scales (e.g. Brief Inventory of Thriving) should be currently preferred. Suggestions to develop a multi-dimensional scale measuring thriving (both using a theory-driven approach or a data-drive approach) are discussed.

Empirical evidence supported the existence of different meaning-making profiles among youths, however, it is unknown whether these profiles are related to specific transitional conditions. The present study applied a multi-group Latent Profile Analysis to examine the generalizability and criterion-validity of meaning-making profiles across two samples of emerging and young adults living different contextual situations (pre-COVID-19 vs during COVID-19), and to investigate their association with the balanced versus imbalanced conditions in the romantic and work role transitions. Three meaning-making profiles, searchers (high search, average presence of meaning), in-between (low search, average presence), and fulfilled (very low search, high presence) were supported by strong generalizability and criterion-validity evidence (i.e. fulfilled individuals showed higher well-being). As expected, older individuals were more likely to be fulfilled, while gender wasn’t a predictor of profiles. Imbalanced individuals in love and work were more likely to be searchers, while fulfilled individuals were predominantly living a balanced condition.

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Several methods are available to answer questions regarding similarity and accuracy, each of which has specific properties and limitations. This study focuses on the Latent Congruence Model (LCM; Cheung, 2009), because of its capacity to deal with cross-informant measurement invariance issues. Until now, no cross-national applications of LCM are present in the literature, perhaps because of the difficulty to deal with both cross-national and cross-informant measurement issues implied by those models. This study presents a step-by-step procedure to apply LCM to dyadic cross-national research designs controlling for both cross-national and cross-informant measurement invariance. An illustrative example on parent–child support exchanges in Italy and Germany is provided. Findings help to show the different possible scenarios of partial invariance, and a discussion related to how to deal with those scenarios is provided. Future perspectives in the study of parent–child similarity and accuracy in cross-national research will be discussed.