علي بلوكي كورنده

Given the vital role of the construction industry in the economy an‎d its persistent productivity challenges, this research aimed to explain the role of transformational leadership, as an inspiring an‎d change-oriented managerial approach, in enhancing project productivity in construction. Due to the lack of a comprehensive theoretical framework in this area, an exploratory sequential mixed-methods design was employed. In the first phase (qualitative), using the Grounded Theory method with the systematic approach of Strauss an‎d Corbin an‎d a systematic literature review, initially 44 primary codes were identified an‎d then organized into 15 intermediate concepts. Finally, these concepts formed a six-component theoretical model within the paradigmatic framework, comprising Causal Conditions (e.g., need for a creative mindset an‎d flexible preparedness), Contextual Conditions (e.g., culture of teamwork an‎d organizational evolution), Intervening Conditions (e.g., level of psychological ease an‎d temporal discipline), the Core Phenomenon (transformational leadership aimed at enhancing productivity), Strategies (leader actions such as responsible autonomy, skills enhancement, endogenous development an‎d nurturing), an‎d Consequences (resulting outcomes like employee alignment, safety, an‎d quality). In the second phase (quantitative), to validate the developed model, a researcher-made questionnaire based on the 15 intermediate concepts was designed. After confirming its validity an‎d reliability (with acceptable Cronbachʹs alpha for the constructs), it was administered to 32 qualified experts from the construction industry (with relevant experience an‎d education). The quantitative findings indicated that from the expertsʹ perspective, Temporal Discipline (Mean=4.28) an‎d Flexible Preparedness (Mean=4.16) were ranked as the most critical factors affecting productivity. Linear regression analysis confirmed the modelʹs key relationships; it was found that Causal an‎d Contextual Conditions were the strongest statistical predictors for adopting Strategies. Furthermore, a positive, strong, an‎d highly statistically significant relationship was observed between Strategies an‎d Consequences; approximately 52% of the variance in consequences was explained by the strategies, an‎d this relationship was so robust that the probability of it being due to chance was assessed as very low (less than 0.1%). The primary innovation of the research was the statistical proof of a reciprocal (two-way) an‎d equally strong an‎d significant relationship between strategies an‎d consequences, indicating the existence of a dynamic feedback loop. Positive outcomes resulting from strategies, in turn, reinforce an‎d sustain those same strategies in the future, forming a cycle of continuous improvement.

رهبري تحول‌آفرين , بهره‌وري پروژه , صنعت ساخت , نظريه داده‌بنياد , روش تحقيق آميخته

Transformational Leadership , Project Productivity , Construction Industry , Grounded Theory , Mixed Methods

Ali Bolouki Koorandeh

Dr. Parviz GHoddousi