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Original Article
The Mediator Effect of Empowerment in Relationship between Transformational Leadership and Organizational Commitment
Yun-Mi Lee, Bok-Mi Kim
Journal of Korean Academy of Nursing 2008;38(4):603-611.
DOI: https://doi.org/10.4040/jkan.2008.38.4.603
Published online: August 31, 2008

1Assistant Professor, Department of Nursing, Research Institute of Geriatric Health, Inje University, Busan, Korea.

2Head Nurse, Inje University Pusan Paik Hospital, Busan, Korea.

Address reprint requests to: Lee, Yun-Mi. Department of Nursing, Inje University, 633-165 Gaegeum-dong, Busanjin-gu, Busan 614-735, Korea. Tel: 82-51-890-6933, Fax: 82-51-896-9840, lym312@inje.ac.kr
• Received: February 22, 2008   • Accepted: July 29, 2008

Copyright © 2008 Korean Society of Nursing Science

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  • Purpose
    This study was to determine the mediator or moderator role of empowerment in the relationship between the head nurse's transformational leadership and organizational commitment as perceived by staff nurses.
  • Methods
    Data was collected from 451 nurses in a tertiary hospital located in B city by means of structured questionnaires. Data was analyzed with descriptive statistics, Pearson's correlation coefficient and hierarchial multiple regression using the SPSS program.
  • Results
    Empowerment showed mediating effects between the head nurse's transformational leadership and organizational commitment as perceived by staff nurses. However, empowerment did not show moderating effects.
  • Conclusion
    Nurses' perception of empowerment, the head nurse's transformational leadership and organizational commitment have a strong relationship. This finding suggests the importance of empowering nurses to increase organizational commitment.
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Figure 1
Conceptual framework (moderating effect).
jkan-38-603-g001.jpg
Figure 2
Conceptual framework (mediating effect).
jkan-38-603-g002.jpg
Figure 3
Mediating effect of empowerment in the relationship between transformational leadership and organizational commitment.
jkan-38-603-g003.jpg
Table 1
General Characteristics of Subjects (N=451)
jkan-38-603-i001.jpg
Table 2
Descriptive Statistics of Study Variables (N=451)
jkan-38-603-i002.jpg
Table 3
Correlations among Study Variables (N=451)
jkan-38-603-i003.jpg

*p<.01; **p<.001.

Table 4
Moderating Effect of Empowerment on the Relationship between Transformational Leadership and Organizational Commitment
jkan-38-603-i004.jpg

**p<.001; Significience of model.

Table 5
Mediating Effect of Empowerment on the Relationship between Transformational Leadership and Organizational Commitment
jkan-38-603-i005.jpg

**p<.001.

TL=transformational leadership.

Figure & Data

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      The Mediator Effect of Empowerment in Relationship between Transformational Leadership and Organizational Commitment
      Image Image Image
      Figure 1 Conceptual framework (moderating effect).
      Figure 2 Conceptual framework (mediating effect).
      Figure 3 Mediating effect of empowerment in the relationship between transformational leadership and organizational commitment.
      The Mediator Effect of Empowerment in Relationship between Transformational Leadership and Organizational Commitment

      General Characteristics of Subjects (N=451)

      Descriptive Statistics of Study Variables (N=451)

      Correlations among Study Variables (N=451)

      *p<.01; **p<.001.

      Moderating Effect of Empowerment on the Relationship between Transformational Leadership and Organizational Commitment

      **p<.001; Significience of model.

      Mediating Effect of Empowerment on the Relationship between Transformational Leadership and Organizational Commitment

      **p<.001.

      TL=transformational leadership.

      Table 1 General Characteristics of Subjects (N=451)

      Table 2 Descriptive Statistics of Study Variables (N=451)

      Table 3 Correlations among Study Variables (N=451)

      *p<.01; **p<.001.

      Table 4 Moderating Effect of Empowerment on the Relationship between Transformational Leadership and Organizational Commitment

      **p<.001; Significience of model.

      Table 5 Mediating Effect of Empowerment on the Relationship between Transformational Leadership and Organizational Commitment

      **p<.001.

      TL=transformational leadership.


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