Predictors of female registered nurses' interest in enrolling in master's programs of nursing graduate schools in Japan.

Objective: Enrollment in graduate schools presents a useful opportunity for registered nurses to enhance their expertise in their nursing field and gain better opportunities to achieve their desired career advancements. This study investigates the predictors associated with registered nurses' interest in enrolling in master's programs of nursing graduate schools. Materials and
Methods: For the predictors associated with interest in enrolling in master's programs of nursing science, we evaluated items related to registered nurses' perceptions of their work environments and their impressions regarding master's programs in nursing. The analyzed subjects were 3,611 female registered nurses working in 30 hospitals in Mie prefecture, Japan. Multiple linear regression analyses were conducted to investigate registered nurses' predictors of interest in enrolling in master's programs of nursing graduate schools. We included the variables with Variance Inflation Factor (VIF) less than (<) 2 in the statistical model.
Results: Full-time nurses were more interested in enrolling in master's programs than part-time nurses. Registered nurses who felt that they could keep up with courses in graduate schools, that they would be able to acquire skills to contribute to society, and that their colleagues were competent, showed stronger interest in master's programs. Registered nurses who were under the impression that graduate school teachers were dedicated to their students showed lower interest in master's programs. Registered nurses who felt that their superiors were competent and that they were expected to perform well by physicians also showed lower interest in master's programs.
Conclusion: Predictors significantly associated with registered nurses' interest in enrolling in master's programs of nursing graduate schools were determined. Further studies are required to gain a more detailed understanding of the nurses' attitudes investigated.

Introduction

In Japan, registered nurses that do not have a bachelor’s degree in nursing are able to enroll in master’s programs at graduate schools[1]). Therefore, graduate schools in Japan are open to many registered nurses. Enrollment in graduate schools presents a useful opportunity for registered nurses to enhance their expertise in their nursing field and gain better opportunities to achieve the career advancements they desire.

A number of descriptive studies published in Japan have examined the needs and wishes of nurses working in hospitals who are considering enrolling in nursing graduate schools[2],[3],[4],[5],[6],[7],[8]). These previous studies suggest that most registered nurses who hope to enroll in graduate schools wish to continue working while studying. Therefore, graduate school staff should assist graduate students with their studies (e.g., through arrangements that allow students to complete the curriculum beyond the standard period of study, by offering lectures at night and on weekends, and also by providing economic support). However, registered nurses will not feel encouraged to go to graduate school unless they are interested in enrolling in graduate school. It is important to investigate what kind of registered nurses are interested in enrolling in graduate schools.

In Austria, Ng et al. investigated the attitudes of registered nurses toward postgraduate education[9]). They conducted a factor analysis of these attitudes and identified three factors from the results: to become facilitators, to achieve professional recognition, and inhibiting factors. The “facilitators” factor accounted for 28.5% of variance and encompassed six items: improving nurses’ knowledge, increasing nurses’ confidence in clinical decision-making, enhancing nurses’ careers, improving nurses’ critical thinking, improving nurses’ clinical skills, and increasing job satisfaction. They reported that these six items support and attract registered nurses to pursue a postgraduate education. However, their study did not examined the importance of registered nurses’ interest in enrolling in master’s programs of nursing science.

Nurses’ perceptions of their work environments may influence their interest in enrolling in a graduate school. For example, if nurses find their colleagues working in a clinical setting to be competent, they may experience favorable stimulation from their colleagues and their interest in studying at the graduate level may increase. Further, nurses’ impressions regarding graduate school may influence their interest in enrollment. For example, nurses’ interest in career promotion through graduate school may be weakened if they have the impression that graduate school lectures are difficult to understand.

This study aimed to explore factors associated with interest in enrollment in nursing science master’s programs. To the best of our knowledge, no previous studies have focused on this topic. We investigated registered nurses’ perceptions of their work environments and their impressions regarding graduate school using factor analyses. Thereafter, we examined the associations between these factor scores and nurses’ interest in enrolling in a graduate school.

Methods

Distribution and collection of questionnaires

Questionnaires were distributed and collected from September to December 2017. As the number of male registered nurses was much lower than that of female registered nurses, males were excluded as subjects. The study subjects were 5,675 female registered nurses working at 30 hospitals in Mie prefecture in Japan. We distributed a package with an anonymous self-rated questionnaire (original version in Japanese), documents explaining the study, and a return envelope to the subjects. Approximately two weeks after the distribution, the completed questionnaires were collected in sealed envelopes to ensure truthful answers. The questionnaires were collected via collection boxes kept in the participating hospitals.

Question items of the questionnaire

The question items in this study are classified into the following categories: (1) demographic characteristics (age, marital status [married, single], with/without children, employment status [full-time worker, part-time worker]); (2) items related to nursing research and work environment; (3) present state of enrollment in a master’s program of a nursing graduate school; (4) “Impressions regarding the master’s programs of nursing graduate schools” (1 to 20 in Appendix A) and “Interest in enrolling in a master’s program of a nursing graduate school” (21 in Appendix A); and (5) registered nurses’ perceptions of their work environments (1 to 20 in Appendix B). Because the purpose of this study is to explore the predictors associated with nurses’ “Interest in enrolling in a master’s program of a nursing graduate school”, items in category (2) related to nursing research and the work environment are not included for analyses in the present study.

For category (3), participants were asked to select an option from “Not enrolled yet”, “Completed”, and “Currently enrolled”. Participants who selected “Not enrolled yet” for this question were asked to respond to the questions in categories (4) and (5). Participants who selected “Completed” and “Currently enrolled” were asked to submit the questionnaire enclosed in the envelope.

For “Interest in enrolling in a master’s program of a nursing graduate school”, the participants were asked to respond to the statement, “I am interested in enrolling in a master’s program of a nursing graduate school” (Item 21 in Appendix A). For “Impressions regarding the master’s programs of nursing graduate schools”, we hypothesized that the following four factors would be relevant: “Being able to keep up with courses in graduate schools” (1 to 5 in Appendix A), “Dedication of graduate school teachers to their students” (6 to 10 in Appendix A), “Acquiring advanced expertise” (11 to 15 in Appendix A), and “Being able to acquire skills to contribute to society” (16 to 20 in Appendix A). These questions were rated on a 7-point scale from “Definitely agree” to “Definitely disagree”.

For category (5), we hypothesized that the following four factors would be relevant: “Competent colleagues” (1 to 5 in Appendix B), “Competent superiors” (6 to 10 in Appendix B), “Physicians’ expectations of registered nurses” (11 to 15 in Appendix B), and “Work environment to continue learning” (16 to 20 in Appendix B). Answers to these questions were rated on a 7-point scale from “Definitely agree” to “Definitely disagree”.

Analyzed subjects

Among 5,675 questionnaires delivered, 4,495 questionnaires were collected. The questionnaires that had one or more missing values in terms of the items used in this study were excluded. Further, with reference to category (3), we excluded 18 registered nurses who reported “Completed” and 8 who reported “Currently enrolled”. As a result, 3,611 registered nurses were analyzed.

Analytical method

For “Impressions regarding the master’s programs of nursing graduate schools” (1 to 20 in Appendix A) and “Perceptions of the work environment” (1 to 20 in Appendix B), we conducted factor analysis (the principal factor method and promax rotation), respectively. Cronbach’s alpha coefficient for each factor was also calculated.

To investigate the relationships between “Interest in enrolling in a master’s program of a nursing graduate school” and other variables, we calculated Pearson correlation coefficients or conducted Mann-Whitney U tests. In addition, standardized partial regression coefficients were calculated using forced-entry multiple regression analyses. “Interest in enrolling in a master’s program of a nursing graduate school” was a dependent variable. The factor scores calculated by the factor analyses and the demographic characteristics were the independent variables.

The Variance Inflation Factor (VIF) is useful as an index for measuring the possibility of multicollinearity[10], [11]). If the VIF is less than (<) 2, multicollinearity will not be considered[10]). Therefore, we fixed the variables with VIF less than (<) 2 in the statistical model used in this study.

The level of statistical significance was set at P<0.05. We used the IBM SPSS Statistics Ver. 25.0 software for all analyses.

Ethical considerations

The study was conducted with the approval of the Ethics Committee of Yokkaichi Nursing and Medical Care University (No. 123).

Results

Table 1 shows the distributions of demographic characteristics and the variable associated with “Interest in enrolling in a master’s program of a nursing graduate school”. The average age of the analyzed subjects was 37.6 years (standard deviation, 11.2). For the item “Interest in enrolling in a master’s program of a nursing graduate school”, the most frequent answer was “Definitely disagree” (34.9%). Regarding respondents’ marital status, the Mann-Whitney U test showed there to be a significant difference in “Interest in enrolling in a master’s program of a nursing graduate school”.

Table 1

Distributions of demographic characteristics and the variable “Interest in enrolling in a master’s program of a nursing graduate school”

Variable		Interest in enrolling in a master’s program of a nursing graduate school							Total	Pearsonʼs correlation coefficient andMann-Whitney U test
		Definitely disagree	Mostlydisagree	Somewhat disagree	Neither agree nor disagree	Somewhat agree	Mostly agree	Definitely agree
Age
	≤29	356 (31.4%)	182 (16.0%)	94 (8.3%)	303 (26.7%)	155 (13.7%)	28 (2.5%)	16 (1.4%)	1,134 (100%)	−0.023 (P=0.162)a
	30–39	336 (36.9%)	120 (13.2%)	69 (7.6%)	224 (24.6%)	112 (12.3%)	29 (3.2%)	21 (2.3%)	911 (100%)
	40–49	331 (35.4%)	120 (12.8%)	58 (6.2%)	242 (25.9%)	134 (14.3%)	26 (2.8%)	24 (2.6%)	935 (100%)
	50–59	208 (38.1%)	81 (14.8%)	29 (5.3%)	142 (26.0%)	60 (11.0%)	18 (3.3%)	8 (1.5%)	546 (100%)
	≥60	31 (36.5%)	12 (14.1%)	0 (0.0%)	26 (30.6%)	11 (12.9%)	4 (4.7%)	1 (1.2%)	85 (100%)
Marital status
	Married	732 (37.2%)	270 (13.7%)	120 (6.1%)	513 (26.1%)	243 (12.3%)	56 (2.8%)	34 (1.7%)	1,968 (100%)	P=0.010b
	Single	530 (32.3%)	245 (14.9%)	130 (7.9%)	424 (25.8%)	229 (13.9%)	49 (3.0%)	36 (2.2%)	1,643 (100%)
With/without children
	With children	702 (37.4%)	250 (13.3%)	105 (5.6%)	487 (25.9%)	251 (13.4%)	50 (2.7%)	32 (1.7%)	1,877 (100%)	P=0.051b
	Without children	560 (32.3%)	265 (15.3%)	145 (8.4%)	450 (26.0%)	221 (12.7%)	55 (3.2%)	38 (2.2%)	1,734 (100%)
Employment status
	Full-time worker	1,109 (34.7%)	453 (14.2%)	222 (6.9%)	842 (26.3%)	420 (13.1%)	91 (2.8%)	63 (2.0%)	3,200 (100%)	P=0.282b
	Part time worker	153 (37.2%)	62 (15.1%)	28 (6.8%)	95 (23.1%)	52 (12.7%)	14 (3.4%)	7 (1.7%)	411 (100%)
Total		1,262 (34.9%)	515 (14.3%)	250 (6.9%)	937 (25.9%)	472 (13.1%)	105 (2.9%)	70 (1.9%)	3,611 (100%)

To calculate a Pearson’s correlation coefficient or conduct Mann-Whitney U tests, the following system was used. Respondent’s age was used as a continuous variable. Concerning “Interest in enrolling in a master’s program of a nursing graduate school”, 1 to 7 points were given in the order from definitely disagree to definitely agree. a: Pearson’s correlation coefficient. b: Mann-Whitney U test.

Table 2 shows the results of a factor analysis of “Impressions regarding the master’s programs of nursing graduate schools”, and the following four factors were identified: “Acquiring advanced expertise” (1st factor), “Being able to keep up with courses in graduate schools” (2nd factor), “Dedication of graduate school teachers to their students” (3rd factor), and “Being able to acquire skills to contribute to society” (4th factor). These four factors accounted for 77.1% of the total variance of the 20 items before the rotation. The eigenvalues of factors 1 to 4 were 9.309, 3.158, 1.831, and 1.121, respectively. Cronbach’s alphas were above 0.9 for all factors.

Table 2

Factor analysis of impressions regarding the master’s programs of nursing graduate schools

Factor		1	2	3	4
1. Acquiring advanced expertise (Cronbach’s α=0.945)
	12. Thinking based on evidence	0.914	0.001	0.011	−0.010
	13. Gaining expertise that cannot be acquired by only working at clinical sites	0.902	−0.013	−0.006	−0.016
	14. Enabling logical thinking	0.860	−0.011	−0.014	0.060
	11. Developing expertise in nursing	0.798	0.010	0.089	−0.003
	15. Acquiring broad perspectives	0.766	−0.010	−0.026	0.162
2. Being able to keep up with courses in graduate schools (Cronbach’s α=0.918)
	4. Dealing with subjects	−0.077	0.929	0.011	0.027
	3. Understanding the textbooks	0.003	0.919	0.006	−0.014
	5. Earning credits	−0.017	0.910	|<0.001|a	−0.014
	1. Keeping up with lectures	−0.031	0.838	−0.020	0.002
	2. Acquiring skills for research	0.213	0.557	0.024	0.041
3. Dedication of graduate school teachers to their students (Cronbach’s α=0.910)
	7. Kind instruction	0.025	0.018	0.892	−0.076
	9. Advising students on problems	−0.082	−0.039	0.888	0.089
	10. Taking time to answer questions on student research	0.076	−0.016	0.795	−0.012
	8. Attractive personalities	−0.045	−0.042	0.770	0.158
	6. Not being overbearing toward their students	0.073	0.092	0.709	−0.107
4. Being able to acquire skills to contribute to society (Cronbach’s α=0.905)
	17. Contribution to societal development	−0.042	0.020	−0.019	0.923
	16. Contribution to raising the quality of people’s lives	−0.014	0.002	−0.030	0.865
	18. Contribution to raising the quality of nursing services	0.149	0.005	−0.002	0.773
	19. Contribution to improving problems at the nursing work site	0.140	−0.003	0.032	0.696
	20. Expecting registered nurses to gain highly specialized expertise	0.006	|<0.001|b	0.066	0.592
Inter factor correlations
1. Acquiring advanced expertise		1
2. Being able to keep up with courses in graduate schools		0.287	1
3. Dedication of graduate school teachers to their students		0.593	0.331	1
4. Being able to acquire skills to contribute to society		0.726	0.290	0.562	1

To conduct factor analysis (the principal factor method and promax rotation), the following system was used. Concerning each item of impressions regarding the master’s programs of nursing graduate schools, 1 to 7 points were given from definitely disagree to definitely agree. Bold-faced type shows factor loadings ≥0.4. To calculate the Cronbachʼs alpha of each factor, 1 to 7 points were given in the order from definitely disagree to definitely agree. a,b: Factor loadings can become either positive (+) or negative (−), and we therefore used the absolute value.

Table 3 shows the results of the factor analysis of “Registered nurses’ perceptions of their work environments”, and the following four factors were identified: “Work environment to continue learning” (1st factor), “Competent superiors” (2nd factor), “Competent colleagues” (3rd factor), and “Physician expectations of registered nurses” (4th factor). These four factors accounted for 78.8% of the total variance of the 20 items before the rotation. The eigenvalues of factors 1 to 4 were 8.631, 3.421, 2.037, and 1.673, respectively. Cronbach’s alphas were above 0.9 for all factors.

Table 3

Factor analysis of registered nurses’ perceptions of their work environment

Factor		1	2	3	4
1. Work environment to continue learning (Cronbach’s α=0.958)
	18. The need to develop nursing expertise	0.971	0.007	0.004	−0.032
	17. The need to develop decision-making skills	0.955	−0.006	−0.007	−0.013
	19. The need to continue learning to become educated	0.906	0.002	0.012	0.004
	20. The need for registered nurses to wish to continue learning throughout their lives	0.869	0.004	0.013	−0.002
	16. The need to keep up with advances in medicine	0.835	−0.009	−0.006	0.040
2. Competent superiors (Cronbach’s α=0.943)
	9. Strong motivation toward self-improvement among supervisors	0.006	0.947	−0.043	0.009
	8. Diligent supervisors	0.001	0.921	−0.013	−0.032
	10. Curiosity among supervisors	−0.014	0.868	0.012	0.007
	7. Supervisors placing importance on research	−0.047	0.833	0.067	0.014
	6. Recognizing the necessity of developing nursing expertise	0.059	0.763	0.053	0.010
3. Competent colleagues (Cronbach’s α=0.912)
	4. Strong motivation toward self-improvement among my colleagues	0.048	−0.035	0.932	−0.025
	3. Diligent colleagues	0.014	−0.039	0.893	−0.022
	5. Curiosity among my colleagues	0.050	0.042	0.749	0.018
	2. Colleagues placing importance on research	−0.088	0.021	0.746	0.036
	1. Colleagues striving to develop their expertise in nursing	−0.007	0.093	0.731	0.024
4. Physician expectations of registered nurses (Cronbach’s α=0.903)
	12. Physicians’ expectations of registered nurses to play an active role in team medicine	−0.071	−0.014	0.031	0.894
	14. Physicians’ expectations of registered nurses to continue learning	0.084	0.003	−0.024	0.824
	13. Physicians’ expectations of registered nurses to report their opinions as nursing experts in conferences	−0.117	−0.054	0.101	0.787
	11. Physicians’ expectations of registered nurses to develop expertise	0.010	0.081	−0.051	0.771
	15. Physicians’ expectations of registered nurses to develop decision-making skills	0.156	−0.003	−0.050	0.730
Inter factor correlations
1. Work environment to continue learning		1
2. Competent superiors		0.372	1
3. Competent colleagues		0.212	0.568	1
4. Physician expectations of registered nurses		0.429	0.487	0.421	1

To conduct factor analysis (the principal factor method and promax rotation), the following system was used. Concerning each item of registered nurses’ perceptions of their work environments, 1 to 7 points were given from definitely disagree to definitely agree. Bold-faced type shows factor loadings ≥0.4. To calculate the Cronbach’s alpha of each factor, 1 to 7 points were given in the order from definitely disagree to definitely agree.

Table 4 shows the results of the multiple regression analyses. We fixed age, marital status, employment status, and eight factor scores (i.e., “Acquiring advanced expertise”, “Being able to keep up with courses in graduate schools”, “Dedication of graduate school teachers to their students”, “Being able to acquire skills to contribute to society”, “Work environment to continue learning”, “Competent superiors”, “Competent colleagues”, and “Physician expectations of registered nurses”) in the statistical model.

Table 4

Predictors of interest in enrolling in a master’s program of a nursing graduate school

Variable	Pearson’s correlation coefficient	P	Standardized partial regression coefficient	P	VIFa
Age	–	–	−0.003	0.869	1.332
Marital status	–	–	−0.006	0.715	1.366
Employment status	–	–	0.036	0.017	1.106
Being able to keep up with courses in graduate schools	0.405	<0.001	0.325	<0.001	1.175
Dedication of graduate school teachers to their students	0.222	<0.001	−0.117	<0.001	1.745
Being able to acquire skills to contribute to society	0.410	<0.001	0.390	<0.001	1.706
Work environment to continue learning	0.125	<0.001	0.026	0.115	1.377
Competent superiors	0.090	<0.001	−0.052	0.008	1.892
Competent colleagues	0.168	<0.001	0.083	<0.001	1.708
Physician expectations of registered nurses	0.102	<0.001	−0.072	<0.001	1.654

To calculate standardized partial regression coefficients and/or Pearson’s correlation coefficients, the following system was used. Concerning interest in enrolling in a master’s program of a nursing graduate school, 1 to 7 points were given in the order from definitely disagree to definitely agree. Respondents’ age was used as a continuous variable. The coding of dichotomous variables were marital status (married=1, single=0) and employment status (full-time worker = 1, part-time worker = 0). Regarding each factor shown in Table 2 and Table 3, the factor scores were calculated and then used for the analyses. a: VIF, Variance Inflation Factor.

However, the variables with VIF ≥ 2 were marital status (VIF=2.164), with/without children (VIF=2.496), “Acquiring advanced expertise” (VIF=3.115), and “Being able to acquire skills to contribute to society” (VIF=2.738). Among the 1,968 married nurses, 1,674 (85.1%) reported the presence of children. Further, “Acquiring advanced expertise” showed the highest correlation with “Being able to acquire skills to contribute to society” (Pearson’s correlation coefficient [r]=0.772, P<0.001).

As shown in Table 1, regarding respondents’ marital status, the Mann-Whitney U test shows there to be a significant difference in “Interest in enrolling in a master’s program of a nursing graduate school”. Moreover, “Interest in enrolling in a master’s program of a nursing graduate school” had significant correlations with “Being able to acquire skills to contribute to society” (r=0.410, P<0.001) and “Acquiring advanced expertise” (r=0.299, P<0.001). The Pearson’s correlation coefficient of “Being able to acquire skills to contribute to society” was higher than that of “Acquiring advanced expertise”. Therefore, we excluded “With/without children” and “Acquiring advanced expertise” in the statistical model and then conducted the multiple regression analysis again.

As shown in Table 4, the values of VIF were less than (<) 2 for all variables in the final statistical model. Variables that were significantly associated with “Interest in enrolling in a master’s program of a nursing graduate school” were as follows: “Employment status”, “Being able to keep up with courses in graduate schools”, “Dedication of graduate school teachers to their students”, “Being able to acquire skills to contribute to society”, “Competent superiors”, “Competent colleagues”, and “Physician expectations of registered nurses”. The adjusted R2 value was 0.270.

“Interest in enrolling in a master’s program of a nursing graduate school” had significant positive correlations with “Dedication of graduate school teachers to their students” (r=0.222, P<0.001), “Competent superiors” (r=0.090, P<0.001), and “Physician expectations of registered nurses” (r=0.102, P<0.001). However, the standardized partial regression coefficients associated with “Dedication of graduate school teachers toward their students”, “Competent superiors”, and “Physician expectations of registered nurses” were –0.117 (P<0.001), –0.052 (P=0.008), and –0.072 (P<0.001), respectively. The signs of the standard partial regression coefficients of these three variables changed to negative.

Discussion

We investigated the predictors associated with “Interest in enrolling in a master’s program of a nursing graduate school”. “Interest in enrolling in a master’s program of a nursing graduate school” was significantly associated with “Employment status”, “Being able to keep up with courses in graduate schools”, “Dedication of graduate school teachers to their students”, “Being able to acquire skills to contribute to society”, “Competent superiors”, “Competent colleges”, and “Physician expectations of registered nurses”.

The registered nurses who feel that they will be able to keep up with courses in graduate schools showed a significantly higher interest in enrolling in nursing science master’s programs. If registered nurses think that learning at a graduate school is very difficult, they may worry about whether they will be able to acquire the skills and knowledge required in nursing even if they enroll in and study at a graduate school. Registered nurses may be anxious about whether they will be able earn the required credits after admission and successfully complete the master’s degree course. If registered nurses have such anxiety, they may not try to enroll in a graduate school.

On the other hand, because graduate education requires students to absorb more advanced nursing skills and knowledge than undergraduate and vocational school graduates, graduate schools do not accept students with low academic performance. Therefore, it is important for graduate school teachers to sufficiently explain the difficulty level of graduate school education to registered nurses. This will make it possible for registered nurses to consider whether they will be able to keep up with graduate school education.

Registered nurses who felt that graduate school teachers are dedicated to their students showed a significantly lower interest in enrolling in master’s programs. This result is contrary to our hypothesis. There are many reports of students being harassed by faculty members in Japanese universities[12],[13],[14]). Even if teachers intend to provide enthusiastic instruction to students, some students may perceive this negatively, thinking that the attitudes of teachers are excessively strict. Some registered nurses in graduate school who are continuing employment may feel anxious because they must balance work and studies. It is necessary for graduate school teachers to be aware of the potential to be misunderstood while instructing students.

Registered nurses who felt that they would be able to acquire skills to contribute to society were significantly more interested in enrolling in master’s programs. If they enroll in a graduate school, they will spend large amounts of time studying at the graduate school. Some registered nurses may think that concentrating on clinical activities will contribute more to society than acquiring knowledge from books. Therefore, such nurses may not value graduate schools. After registered nurses graduate, graduate school teachers should inform them about what kinds of nursing skills and expertise they can be expected to have acquired. Registered nurses can better evaluate the kind of social contribution they will be able to make in the future after they have completed a master’s program.

Registered nurses who felt that their superiors were competent and that they were expected to perform well by physicians were significantly less interested in enrolling in master’s programs. These results are logical when nursing activities are considered in the clinical setting.

Nursing science is a practical study. Registered nurses can learn nursing skills and expertise from their superiors, especially when the superiors are competent. They may not feel any necessity to go to graduate school because they can learn what they are uncertain about and what they wish to learn in the clinical setting.

Further, because registered nurses need to work with physicians, they will realize that their expertise is respected when they are aware of the expectations of the physicians they are working with. These considerations may lower the motivation of registered nurses to strengthen their expertise by making the additional effort to enroll in a graduate school.

Education in graduate schools can provide educational opportunities and knowledge that are difficult to fully acquire in the clinical setting (including advanced thinking skills, the ability to critically read the literature, data analysis skills, and the ability to organize research results). Further, there are many teachers in graduate schools who do not specialize in nursing science and medicine, but rather in statistics and social sciences. Learning from these graduate school teachers can help registered nurses broaden their perspective and enable acquisition of sophisticated thinking abilities that they will not be able to solely obtain through instruction from superior nurses and collaborative work with physicians. Registered nurses who complete a graduate school course may develop new ways of thinking, without being confined by convention. It is necessary for graduate school teachers to inform registered nurses that they offer education that is unique to graduate schools and is helpful.

The registered nurses who felt that their colleagues were competent were significantly more interested in enrolling in master’s programs. Registered nurses are broadening their professional abilities while working diligently together with others in an environment in which their colleagues are competent. In such an environment, registered nurses will be subject to favorable stimuli from their colleagues in their daily work, instilling wishes to improve and develop their professional abilities. It would seem that registered nurses exposed to such environments would become interested in graduate school and in seeking more advanced education. Graduate school teachers do not directly engage in the management of hospitals. However, universities can support the learning activities of registered nurses working in hospitals through extension lectures. Graduate school teachers should contribute to developing competent nurses who wish to further their skills.

Full-time nurses were significantly more interested in enrolling in master’s programs than part-time nurses. In many cases, full-time nurses have been engaged in more responsible tasks than part-time nurses. There may be family circumstances that influence the choice of employment type, but one possible reason that full-time nurses choose full-time employment is that they are attracted to nursing work. Therefore, full-time nurses may feel the necessity to improve their professional abilities more strongly and be more interested in career development than part-time nurses.

The first limitation of this study was that random sampling was not used. Therefore, the generalizability of the results of this study are limited. Additionally, because a cross-sectional design was used, we could not identify casual relations.

One study in the United States focused on so-called “magnet hospitals” that had a high retention rate in terms of nurses[15], [16]). Magnet hospitals offer comprehensive educational support for nurses to receive formal education and acquire academic degrees (e.g., flexible work scheduling, financial support, and leaves of absence). This can be applied to Japan, where there is a shortage of nurses[17], [18]) and where such educational support could contribute to raising retention rates by creating workplaces in which nurses experience job satisfaction and any improvements regarding their nursing skills are appreciated. Further studies should investigate the educational support provided by hospitals for nurses and assess its effects.

Conclusions

We investigated the predictors associated with interest in enrolling in the master’s programs of nursing graduate schools. We found that full-time nurses were more interested in enrolling in master’s programs than part-time nurses. Registered nurses who felt that they could keep up with courses in graduate schools, that they would be able to acquire skills to contribute to society, and that their colleagues were competent, showed stronger interest in master’s programs. Registered nurses who were under the impression that graduate school teachers were dedicated to their students showed lower interest in master’s programs. Registered nurses who felt that their superiors were competent and that they were expected to perform well by physicians also showed lower interest in master’s programs.

Conflict of Interest

The authors declare that they have no conflicts of interest to report.