The construct and predictive validity of the Mental Fitness and Resiliency Inventory and Positive Leadership Inventory of the Positive Workplace Framework
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Date
2025-04
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University of New Brunswick
Abstract
This dissertation explores the construct and predictive validity of the Mental Fitness and Resiliency Inventory (MFRI) and the Positive Leadership Inventory (PLI), questionnaires of the Positive Workplace Framework (PWF). The PWF is a strengths-based approach that promotes mental health, well-being (mental fitness and resiliency), and positive leadership at the group level in workplace settings, with the goal of fostering healthy organizational cultures. By integrating evidence- and strengths-based practices over time, the PWF enhances long-term well-being and leadership capacity, positively impacting employee flourishing and productivity.
The MFRI and PLI serve as key tools for assessing workplace well-being and leadership effectiveness. These questionnaires may be particularly valuable in resource-limited settings, such as small- and medium-sized enterprises (SMEs), where access to structured well-being programs is limited and external interventions may be challenging to implement (Lloyd et al., 2025).
This quantitative research examined the psychometric characteristics of the French versions of the MFRI and PLI and their relevance for fostering well-being and positive leadership in the workplace. The objectives were to: 1) validate the French versions of the MFRI and PLI; 2) deepen understanding of the relationship between well-being (mental fitness and resiliency) and positive leadership; 3) evaluate the structural validity of the French PWF; and 4) identify optimal interventions based on team-level results.
This work also addressed key research gaps: a) validating French-language group-level measurements for assessing collective well-being and positive leadership; b) generating empirical insights into the impact of positive leadership on well-being; c) validating the overall PWF framework; and d) informing the use of these measures to promote a workplace culture grounded in well-being and positive leadership.
Data were collected from 96 Francophone schools in New Brunswick, including 6,017 educator responses to the MFRI and PLI during the 2020–2021 and 2021–2022 school years. Analyses using Classical Test Theory (CTT), Exploratory Factor Analysis (EFA), and Confirmatory Factor Analysis (CFA) supported the reliability, validity, and structural integrity of the French MFRI and PLI. The results underscore the PWF’s predictive value in identifying interventions that enhance mental fitness, resiliency, and positive leadership in workplace teams, particularly in educational contexts.