Significant increase in the number of organizations, diversity of tasks and responsibilities, and the necessity to ensure coordination between human and financial resources necessitate particular attention to the issue of management (
1). One of the key components of organizational management, particularly in healthcare organizations, is the management of human resources (
2) whose skills, abilities, and motivations have a significant role in achieving organizational goals (
1). On the other hand, nurse managers have a critical role in retaining their staff, particularly professional care providers. Through their leadership styles and skills, nurse managers can decrease undesirable changes in their staff. Therefore, their leadership styles are of paramount importance (
2).
Based on their own, their staff’s and their environmental conditions, managers adopt one of the leadership styles (
3). According to Hersey and Blanchard, the leadership style of each person includes his/her behavioral pattern to affect others’ activities and is based on others’ perceptions of his/her behaviors (
2). The Fiedler contingency theory to leadership states that a certain leadership style does not fit all situations; rather, each situation necessitates a certain leadership style which should be selected based on staff’s desire and capacity (
4,
5). Accordingly, managers can facilitate staff’s acceptance of changes in approaches to care delivery and enhance their productivity and empowerment through adopting effective leadership styles (
6). This theory suggests that managers behave based on maturity, capacities and desires of their staff (
7). The concept of maturity in this theory points to the quality of staff’s motivation, competence, experiences, and interests to accept responsibilities. Based on staff’s maturity, Hersey and Blanchard proposed four leadership styles of telling, selling, participating and delegating (
8). Consequently, a manager needs to adopt situation-specific leadership styles according to the immediate organizational culture and staff’s maturity (
5).
Shakour et al. found that most managers who participated in their study (60%) adopted task-oriented leadership style, equated leadership with task performance, found ideality in greater productivity, and hence paid little attention to humanistic aspects of leadership and rarely used relationship-oriented style (
3). Seyed Javadi et al. also reported that most hospital managers adopted the telling leadership style and paid little attention, if any, to staff’s competence, skills, motivations, and desires (
9). Lajavardi and Nazari noted that managers’ ability to perceive management enhances staff’s cooperation and commitment to their organizations, improves their motivations and productivity and increases organizational profitability (
10).
Many studies reported a significant relationship between managers’ leadership behaviors and staff’s professional empowerment (
6,
11,
12). There are two approaches to empower staff with structural and psychological bases. Structural empowerment deals with modifying environmental structures by managers and facilitating staff’s access to organizational facilities. According to Spreitzer, psychological empowerment is the perception of staff regarding their working environment. Spreitzer used the psychological model of Velthouse and Thomas and determined four dimensions for psychological empowerment (
13). Thereafter the results of a study conducted by Mishra added the ‘trust’ dimension to psychological empowerment dimensions. Consequently, psychological empowerment consists of five dimensions including senses of competence, self-determination, impact, meaningfulness and trust (
14). The steps to the empowerment of workforce are congruent with the four leadership styles. In the telling step or style, managers dominate workforce. In this step, managers possess supreme authority and hence, make decisions. Accordingly, staff is only the follower of manager’s commands. This step helps staff develop competence. The aim of the selling step is to help staff learn that in this step managers consult with them and even accept their wrong advice to face problems. In the participating step, decisions are made through participation while in the delegating step, authorities are transferred to staff and they are authorized to make decisions (
15). Given the diversity of staff’s capability and competence, managers need to change their leadership style based on the capability and competence of staff. Once staff develops abilities and desires, leadership style is shifted from close supervision to delegation. Leadership style is a determining factor in staff empowerment. The success of managers greatly depends on the flexibility of their leadership styles in different situations (
16). Managers who choose their leadership styles based on the level of staff’s maturity helps to increase organizational effectiveness and staff satisfaction (
17).
Laschinger et al. noted that managers’ improper performance results in failure to access empowerment structures as well as nurses’ emotional and psychological fatigue (
11,
18). Thus, managers need to create a working environment in which staff can perform their tasks with a high morale and a healthy body. However, only managers who have clinical, leadership and communicative skills can create such an environment. Efficient leadership is a key component to create a supportive environment to train empowered staff. Contrary to traditional managers who weaken their staff and hence, cannot empower them, empowered managers act as guides, facilitators and mentors. They can enhance staff’s openness to changes in healthcare delivery approaches, productivity, and empowerment through adopting effective leadership styles (
19).
Empowerment is of great importance in nursing education, practice and management. Previous studies reported conflicting findings regarding nurses’ level of empowerment. For instance, Zaeimipour et al., found that nurses’ empowerment score was low (
20); while Faulkner and Laschinger and Laschinger et al. reported that nurses’ psychological empowerment was at moderate level (
11,
21). On the other hand, Ebrahimi et al., found that the scores of all aspects of psychological empowerment, except for the effectiveness and independence dimensions, were high (
22). Abili and Nastezaie noted that nurses’ empowerment mean score was 57.91, denoting a high empowerment level. In their study, the mean scores of all dimensions of empowerment, except for the trust dimension, were at an optimum level (
23). Eskandari et al. also reported a mean score of 58.7 for nurses’ psychological empowerment. They found that the highest- and the lowest-scored dimensions were competence and impact, respectively (
24). The findings reported by Özaralli (
25) also showed a positive correlation between participatory leadership and staff’s psychological empowerment. In addition, Zaeimi et al. reported that changes in managers’ behaviors promoted nurses’ empowerment and professional practice (
26).