A 25-year perspective on levels of analysis in leadership research

The purpose of this article is to present a comprehensive 25-year review of the incorporation of levels of analysis into conceptual and empirical leadership research published within Leadership Quarterly throughout its history. We assessed the population of Leadership Quarterly's research (790 research articles) on four key levels of analysis-based issues: (1) explicit statement of the focal level(s) of analysis; (2) appropriate measurement given level of constructs; (3) use of a multi-level data analysis technique; and, (4) alignment of theory and data. Prior reviews regarding levels of analysis incorporation into leadership research have been limited to major research domains. Results revealed that while both conceptual and empirical articles only explicitly state the focal level of analysis in approximately one-third of the articles, appropriate levels-based measurement and alignment between theory and data are relatively strong areas of achievement for the articles within Leadership Quarterly. Multi-level data analysis techniques are used in less than one-fifth of all articles. Although there is room for improvement, there is evidence that Leadership Quarterly is a premier outlet for levels-based leadership research. Given the increasing complexity of organizational science with regard to groups, teams and collectives, Leadership Quarterly has an opportunity to model for organizational research on how to build and test complicated multi-level theories and models.     

The use of constructive-developmental theory to advance the understanding of leadership

Constructive-developmental theory is a stage theory of adult development that focuses on the growth and elaboration of a person's ways of understanding the self and the world. In this article we review how the constructive-developmental frameworks of Kegan [Kegan, R. (1982). The evolving self: Problem and process in human development. Cambridge, MA: Harvard University Press], Torbert [Torbert, W. R. (1987). Managing the corporate dream: Restructuring for long-term success. Homewood, IL: Dow Jones-Irwin.], and Kohlberg [Kohlberg, L. (1969). Stage and sequence: The cognitive developmental approach to socialization. In D. Goslin (Ed.), Handbook of socialization: Theory and research. New York: Rand McNally] have been applied in the theoretical and empirical literature on leadership and management. Although the literature has produced a number of propositions, the notion that a leader's order of development should impact his or her leadership effectiveness or managerial performance has generated the most research. We found mixed support for this proposition as well as a number of limitations in the research in general. To have a greater impact on the leadership field, constructive-developmental theory needs to generate more robust research, to link more clearly with on-going streams of leadership research, and to explore the contribution of aspects of the theory beyond individual order of development.     

A systematic and critical review of research on respect in leadership

Respect is an important psychological and interpersonal phenomenon that has been included in various theoretical and empirical approaches to leadership for nearly 70 years. In this systematic and critical review article, we provide a comprehensive summary and critique of theories, definitions, measures, and empirical studies of respect in leadership. We first provide an overview of the historical and theoretical background, including the most common theories, definitions, and measures that inform empirical studies of respect in leadership. Second, we present a systematic literature review of empirical studies on respect in leadership, including a critical evaluation of research designs and statistical analyses that support claims of the validity of various conceptualizations of respect that pertain to the study of leadership. Finally, we offer a new working definition of respect in leadership, and an accompanying conceptual framework which informs a number of recommendations for future theory development, empirical research, and leadership practice.     

Leadership development:: A review in context

Interest in leadership development is strong, especially among practitioners. Nonetheless, there is conceptual confusion regarding distinctions between leader and leadership development, as well as disconnection between the practice of leadership development and its scientific foundation. The present review examines the field of leadership development through three contextual lenses: (1) understanding the difference between leader development and leadership development (conceptual context); (2) reviewing how state-of-the-art development is being conducted in the context of ongoing organizational work (practice context); and (3) summarizing previous research that has implications for leadership development (research context). The overall purpose is to bridge the practice and science of leadership development by showing the importance of building both human and social capital in organizations. Specific practices that are reviewed include 360-degree feedback and executive coaching, mentoring and networking, and job assignments and action learning. Practices and research are framed in terms of a general need to link leader development, which is primarily based on enhancing human capital, with leadership development that emphasizes the creation of social capital in organizations.     

Crisis leadership: A review and future research agenda

The past few decades have witnessed numerous crises that have drawn increasing attention to the study of crisis leadership. However, research in this field remains fragmented and existing reviews often adopt a subjective approach to identify and synthesize the findings of relevant articles. These limitations make it difficult for scholars to appreciate the progress made in the literature, to derive comprehensive and objective insights, and to forge a path ahead. This study synthesizes theoretical insights and empirical findings in the crisis leadership literature using bibliometric techniques. We first review the intellectual structure of the crisis leadership literature by conducting co-citation and bibliographic coupling analyses. We then map the major conceptual themes in the crisis leadership literature via a co-word analysis. To supplement the findings of the bibliometric analyses, we review the key methodological approaches adopted by crisis leadership researchers. Based on the integrative insights, we propose a research agenda highlighting opportunities for theoretical and methodological advancements in crisis leadership research.     

Implications of dispositional and process views of traits for individual difference research in leadership

This article assesses the conceptual and methodological limitations associated with traditional dispositional approaches to personality and leadership, and it proposes that more process-oriented approaches will better enable leadership research to explore emergent leadership phenomena such as perception and effectiveness. By reconceptualizing the structure of the self as a dynamic, but stable entity, we maintain that an explicit focus on events as a fundamental level of analysis is needed, which will help reduce the inaccuracies of aggregate retrospective leadership measures that collapse across different situations and time. Event-level research methodologies can also help account for the effects that situational contingencies have on leader behavioral flexibility, the development of leadership skills, and leadership emergence within shared or distributive leadership structures.     

Advances in leader and leadership development: A review of 25 years of research and theory

The development of effective leaders and leadership behavior is a prominent concern in organizations of all types. We review the theoretical and empirical literature on leader and leadership development published over the past 25 years, primarily focusing on research published in The Leadership Quarterly. Compared to the relatively long history of leadership research and theory, the systematic study of leadership development (broadly defined to also include leader development) has a moderately short history. We examine intrapersonal and interpersonal issues related to the phenomena that develop during the pursuit of effective leadership, describe how development emerges with an emphasis on multi-source or 360-degree feedback processes, review longitudinal studies of leadership development, and investigate methodological and analytical issues in leader and leadership development research. Future research directions to motivate and guide the study of leader and leadership development are also discussed.     

Servant Leadership: A systematic review and call for future research

Notwithstanding the proliferation of servant leadership studies with over 100 articles published in the last four years alone, a lack of coherence and clarity around the construct has impeded its theory development. We provide an integrative and comprehensive review of the 285 articles on servant leadership spanning 20?years (1998–2018), and in so doing extend the field in four different ways. First, we provide a conceptual clarity of servant leadership vis-à-vis other value-based leadership approaches and offer a new definition of servant leadership. Second, we evaluate 16 existing measures of servant leadership in light of their respective rigor of scale construction and validation. Third, we map the theoretical and nomological network of servant leadership in relation to its antecedents, outcomes, moderators, mediators. We finally conclude by presenting a detailed future research agenda to bring the field forward encompassing both theoretical and empirical advancement. All in all, our review paints a holistic picture of where the literature has been and where it should go into the future.     

Visualizing the landscape and evolution of leadership research

Complementing prior quantitative and qualitative reviews of the leadership literature, we conduct a bibliometric analysis of leadership articles. Our bibliometric review provides a different perspective by portraying the landscape and developmental trajectory of leadership research over time via co-citation and co-occurrence analyses. Using a scientific visualization tool CiteSpace and 6528 leadership works collected from the Web of Science database from 1990 to 2017, we detect and visualize the landscape of leadership research and track how this landscape has evolved. After mapping the landscape, we discuss the insights gleaned from our bibliometric review, with a focus on open questions, future research directions, and implications. In doing so, our review provides readers with a systematic understanding of the development of the leadership field and a roadmap to spark leadership research and move this literature forward.     

The mismeasure of man(agement) and its implications for leadership research

The purpose of the present review is to examine the potential problems caused by measurement model misspecification in the field of leadership. First, we discuss the conceptual differences between the four types of measurement models that have been used in leadership research and provide a set of criteria that could be used to decide upon the appropriate model. Following this, we examine the extent of measurement model misspecification by conducting a review of the leadership literature and applying these criteria. Next, we discuss the potential consequences of measurement model misspecification on conclusions made about the structural relationships between constructs. Finally, we discuss the implications of our study for leadership research.     

Let’s agree about nice leaders: A literature review and meta-analysis of agreeableness and its relationship with leadership outcomes

In this study, we draw from 22 years of research in leadership to investigate the ambiguous relationship between the personality trait agreeableness and leadership. First, we conduct a comprehensive review of the leadership literature to build a foundational understanding of leader agreeableness that includes providing a broad definition for agreeableness, identifying emerging trends, and proposing an agenda for future research. Second, using the literature review as our theoretical foundation, we conduct a meta-analysis from the same body of literature to quantitatively decompose the relationship between leader agreeableness and leadership emergence and effectiveness. We also hypothesize and test the contextual moderating effects for gender, leadership level, and cultural context (as reflected by individualism-collectivism). Collectively, our findings provide a framework for future research on leadership agreeableness and support the notion that nice (highly agreeable) leaders can emerge as effective leaders.     

Leadership and generations at work: A critical review

We present a critical review of theory, empirical research, and practical applications regarding generational differences in leadership phenomena. First, we consider the concept of generations both historically and through contemporary arguments related to leadership. Second, we outline and refute various myths surrounding the idea of generational differences in general, and critique leadership theories that have been influenced by these myths. Third, we describe the results of a literature review of primary empirical studies that have invoked the notion of generational differences to understand leadership phenomena. Finally, we argue that the lifespan developmental perspective represents a useful alternative to generational representations, as it better captures age-related dynamics that are relevant to leadership, followership, and leadership development. Ultimately, our work serves as a formal call for a moratorium to be placed upon the application of the ideas of generations and generational differences to leadership theory, research, and practice.     

Revisiting emergence in emergent leadership: An integrative,multi-perspective review

We draw attention to how and why multiple perspectives on emergence can promote leadership scholarship within the broad umbrella category of emergent leadership. Tracing the derivation of emergent leadership and related concepts since 1941, we identify four empirically derived themes: Entries, or how and where definitions were introduced and adopted; Essences, identification of key components and processes; Eclipses, where certain constructs and approaches have gained prominence over others; and Erasures, where particular lines of inquiry and methodologies have been subsumed, ignored, or removed from easy access by researchers. In critically reviewing the emergent leadership literature, we apply these themes to reveal a number of flaws that inhibit emergent leadership research, including: inconsistent measures, narrow sampling frames, tautological definitions, limited theorization, and very little attention to implications for the development of leader-follower relations. Based on this analysis, and with reference to contemporary issues, we propose an agenda for future research on emergent leadership that is informed by interdisciplinary perspectives that give prominence to emergence dynamics.     

We don't need more leaders – We need more good leaders. Advancing a virtues-based approach to leader(ship) development

This conceptual article advances a virtues-based approach to developing good leaders and good leadership. Virtue and discrete virtues are gaining traction within leadership scholarship, but there remains a lack of clarity regarding exactly what virtue is and precisely how virtues inform leadership. To address this, we articulate a clear conceptualization of how virtue informs good leadership in multiple domains. We also elucidate five synergisms of virtues-based leadership development, including how a virtues approach accounts for leadership effectiveness and ethics; how virtue and leadership are both learnable; the relationship between virtues, character, and leadership; the unity and universality of virtue; and how virtue serves as the linchpin between the individual and the common good. Three trajectories for virtues-based leadership development are described. This article has implications for the study and practice of developing good leaders(hip). Limitations and future research directions are discussed.     

Reconciling identity leadership and leader identity: A dual-identity framework

Research exploring the powerful links between leadership and identity has burgeoned in recent years but cohered around two distinct approaches. Research on identity leadership, the main focus of this special issue, sees leadership as a group process that centers on leaders’ ability to represent, advance, create and embed a social identity that they share with the collectives they lead—a sense of “us as a group”. Research on leader identity sees leadership as a process that is advanced by individuals who have a well-developed personal understanding of themselves as leaders—a sense of “me as a leader”. This article explores the nature and implications of these divergent approaches, focusing on their specification of profiles, processes, pathways, products, and philosophies that have distinct implications for theory and practice. We formalize our observations in a series of propositions and also outline a dual-identity framework with the potential to integrate the two approaches.     

Follower behavior renders leader behavior endogenous: The simultaneity problem,estimation challenges,and solutions

Traditionally, leadership research has focused on unidirectional questions in which leader attributes are considered to determine follower outcomes. However, many phenomena between leaders (x) and followers (y) involve a simultaneous influence process in which x affects y, and y also affects x (i.e., simultaneity). Unfortunately, this simultaneity bias creates endogeneity and is often not properly addressed in the extant leadership literature. In three studies, we demonstrate the challenges of simultaneity bias and present two methodological solutions that can help to correct problems of simultaneity bias. We focus on simultaneity that occurs between follower resistance and leader control. We mathematically demonstrate the simultaneity bias using a simulated dataset and show how this bias can be statistically solved using an instrumental variable estimation approach. Furthermore, we present how the simultaneity bias can be resolved using an experimental design. We discuss how our approach advances theory and methods for leadership research.     

The loci and mechanisms of leadership: Exploring a more comprehensive view of leadership theory

Through a qualitative review of the leadership literature, we derive two fundamental principles for codifying the last century of leadership theory and research: the locus and mechanism of leadership. Our systematic review and categorization of past theories suggests that further development of the follower, collective and context loci, and the affect mechanism is needed. Building on these insights, we propose that by simultaneously considering all five loci and four mechanisms in their theories, leadership scholars can advance a more comprehensive and integrative understanding of the leadership phenomenon. We then demonstrate the potential of using the locus and mechanism framework for examining and expanding current and future leadership theory including work on shared and strategic leadership.     

Follower transformation as the linchpin of transformational leadership theory: A systematic review and future research agenda

Transformational leadership theory represents a cornerstone in leadership research. Despite an impressive empirical record highlighted by both the breadth of its nomological network and magnitudes of effects, scholars raise serious construct and content validity concerns. In this article, we address a remarkable oversight in the transformational leadership literature. Few studies have assessed the theory assumption that the positive individual, group, and organizational effects of transformational leadership are due to the transformation of followers in specific and enduring ways. We offer a systematic review of empirical evidence related to follower transformation as the conceptual foundation of transformational leadership theory. Findings from this review highlight the radical leap in the evolution of transformational leadership theory from nascent phenomena to mature paradigm. Calling for a return to nascent and intermediary phases of theory development, we conclude with a research agenda aimed at creating a stronger theory, better measures, and more actionable leadership models.     

Effective design of a global leadership programme

The purpose of this paper is to report level 3 evaluation findings from a leadership development programme. This paper comprises a case study, quantitative data analysis, and results from critical incident semi-structured interviews. A unique research model was developed from a literature review. There are many problems associated with the design and delivery of leadership development programmes. Senior executive-taught workshops, 360° feedback, and action learning were deliberately employed to increase the adoption and application of specific behaviours after the programme. The results substantiate previous findings on the impact of these elements by demonstrating concrete behavioural changes rather than perceived enhancement in leadership capabilities as often cited in other studies. The model should be further tested, applied and refined as necessary.

Organizations wishing to develop leaders could be guided by the model and findings of this research. A novel and innovative design model was developed from a literature review, tested against a leadership programme in a large well-known multi-national organization, and later refined based on the empirical results. It will be of value to HRD managers and researchers.