JSS  Vol.6 No.8 , August 2018
Reliability and Validity of the Student Teacher Professional Identity Scale in Pre-Service Kindergarten Teachers
ABSTRACT
Objective: To revise and explore the application of the student teacher professional identity scale in pre-service kindergarten teachers (STPIS-PK). Methods: 450 preservice kindergarten teachers were surveyed by the student teacher professional identity scale. Results: 1) The EFA supported that teacher professional identity consisted of four subscales: professional values, professional willingness, professional efficiency and professional volition. Also the CFA confirmed the hypothesized four-factor model (x2 = 133.277, x2/df = 2.777, CFI = 0.939, TLI = 0.901, RMSEA = 0.047). The Criteria-related validity was remarkable; 2) The internal consistency of teacher professional identity scale was 0.801 and the four subscales were from 0.628 to 0.789. For two weeks, the test-retest reliability was from 0.616 to 0.786. Conclusion: In sum, this study generated evidence that the STPIS-PK developed in the study is a psychometrically sound and valid instruments to measure pre-service kindergarten teachers’ professional identity.

1. Introduction

Preschool education is the education stage of life enlightenment, which is of great significance to children’s physical and mental health, habit development and intellectual development, and conducive to laying a good foundation for future career success. Therefore, both the national program for medium―and long-term reform and development of education (2010-2020) and the state council’s opinions on the current development of preschool education emphasize that pre-school education should be placed in a more important position [1] . Cultivating high-quality professional kindergarten teachers is the key to developing preschool education. Pre-service kindergarten teachers are the main source of preschool teachers in China. Their professional quality is directly related to the quality of future kindergarten teachers.

According to the current situation in China, there are many problems in the construction of preschool teachers, such as high mobility of preschool teachers, insufficient professional knowledge and poor overall quality, which are related to the lack of correct understanding and recognition of preschool education students on preschool teachers’ career. FU supports this view, he believes that the quality of teachers is directly related to whether they are suitable and like to work as teachers [2] . The professional identity of pre-school education undergraduates refers to the internal psychological mechanism of individuals’ reasonable understanding of preschool education, correct attitude and positive emotional experience [3] . Pre-school education majors’ recognition of preschool education is the most lasting motive force for teachers’ emotion and the basic psychological preparation for preschool education [4] . Therefore, the professional identity of pre-school students majoring in education will not only have an impact on their interest and attitude in school and their future career choice, but also affect the quality and stability of the contingent of preschool teachers in the future. Therefore, it is of great significance to study the professional identity of preschool education normal school students.

Teacher professional identity of normal school students refers to the comprehensive attitude of normal university students of accepting and identifying the teacher occupation they will be engaged in and the current status of normal university students, mainly including professional values , professional willingness, professional efficiency, professional volition and other aspects (Wang, Zeng, Zhang, & Li, 2010) [5] . Wang et al. (2010) [5] designed the original scale by using the literature method and the expert consultation method, applied the measurement and modified the scale several times, and prepared the student teacher professional identity scales, which was used to evaluate the teacher professional identity of normal university students. As the scale has good reliability and validity, it is used as one of the common tools to evaluate the teacher professional identity of normal university students.

The research on the professional identity of preschool education normal school students has attracted wide attention in recent years. Wang and Xue (2011) [6] found that the pre-school education undergraduate students’ professional identity status was generally good through questionnaire and individual interviews, but there were still some problems, and proposed to strengthen the professional identity of undergraduate students from social, school and personal aspects. Zhang et al. (2015) [7] conducted a questionnaire survey on 240 pre-school students majoring in education in a university by using the adapted questionnaire on the identity of pre-school students majoring in education in their professional work. Yang and Zhao (2016) [8] independently compiled the professional identity survey questionnaire for preschool teachers of education major students in three-year colleges and universities, and combined with individual interviews, to further understand the underlying reasons behind the current status of professional identity of students’ preschool teachers. Wu (2018) [9] used theoretical analysis method to analyze the causes of pre-school education major students’ professional identity and put forward corresponding Suggestions on this basis. But in general, most of them are theoretical research, less empirical research. The research method mainly adopts questionnaire survey method, theoretical analysis method and interview method, etc. The research content mainly includes the current status of pre-school education normal school students’ professional identity, the influencing reasons and corresponding suggestions. Questionnaire survey and interview measurement tools only have simple self-compiled questionnaire survey, and the lack of standardized scientific measurement tools has become a problem that needs to be solved urgently. The purpose of this study is to explore the application of teacher professional identity scale in preschool education normal school students, so as to provide necessary basis for further research in this field.

2. Methodology

2.1. Sample Population

Sample Population members of the pre-service kindergarten teachers are from topical normal universities in Nanchang, Jiangxi Province. 450 questionnaires were distributed this time, and 405 valid questionnaires were obtained. The effective recovery rate was 90%. Among them have 16 man and 389 women; 82 freshmen, 83 sophomores, 89 juniors and 62 seniors; 221 students from cities and 184 from rural areas. The age ranged from 17 to 25 years and the average age was 20.21 (SD = 0.41). All samples were randomly divided into two halves, of which 200 (sample 1) were used for exploratory factor analysis, and the remaining 205 (sample 2) were used for confirmatory factor analysis. In addition, 100 people were retested after two weeks.

2.2. The Instrument Used

2.2.1. The Student Teacher Professional Identity Scale for Normal Student

The professional identity for normal students refers to the comprehensive acceptance and recognition of teachers’ occupations and the current status (Wang, Zeng, Zhang & Li, 2010) [5] . In this study, the student teacher professional identity scale for normal school students developed by Wang et al. (2010) [5] was being used. The inventory is composed of 12 items, which consists of four dimensions: professional value, professional willingness, professional efficiency and professional volition with 3 items in each dimension (Wang, Zhu, Liu, & Chen, 2017) [10] . The 5-point scoring method was used, and subjects were asked to score according to their own actual situation. Due to the special essence of preschool education normal student, the title of the inventory is modified. For example, “teacher” is changed to “kindergarten teacher”, “student” is changed to “normal university student”. “1” means “strongly disagree”; “5” means “strongly agree”.

2.2.2. Study Engagement Inventory

Study engagement is a lasting, positive emotional and cognitive psychological state of mind related to learning, research and employment. Study engagement holds three dimensions, which is vitality, dedication, and concentration (Fang, Shi, & Zhang, 2008) [11] . The Chinese version of study engagement revised by Fang et al. (2008) [11] according to the study engagement compiled by Schaufeli (2002) [12] , etc. was being used. The inventory consists of 17 items, which can be divided into three dimensions. Likert’s 7 points method is being used in this inventory, “0” for “never”; “6” for “always”. The higher the score, the more study engaged, see Appendix.

2.3.3. Career Maturity Inventory for College Students

Liu (2009) [13] defined the degree of career maturity of college students as “the degree to which a college student can make career decisions that are compatible with his or her career development stage and prepare for the corresponding career goals, which include career decision-making knowledge and career decision-making attitudes”. The career maturity inventory for college students compiled by Liu (2009) [13] was included. This inventory contains 29 items which consist of 9 dimensions. The 5-point scoring method of A Likter was used.

3. Findings

3.1. Item Analysis

By analyzing the item-total correlation, we gained the results showed that the correlation coefficient of each item and the total scores of their professional identity were as high as 0.794 and as low as 0.514. All the items in the scale was significantly correlated with the total score of their professional identity (p < 0.001), indicating that they were suitable for further structural exploration, reliability and validity analysis.

3.2. Exploratory Factor Analysis

Exploratory factor analysis was conducted for sample 1. The results of Bartlett spherical test and KMO test were significant, with KMO value of 0.799, Bartlett spherical test statistic of 1184.627, P < 0.001. The principal component analysis method was adopted, and the maximum orthogonal rotation of variance (varimax) axis was adopted. Finally, 4 factors were extracted, and the cumulative explanatory variation of 4 factors after rotation axis was 67.246%. The four factors were named as professional value, professional willingness, professional efficiency and professional volition. Professional values, which mainly focuses on value judgments regarding the teaching profession; professional willingness, which represents the respondents’ expectations and preparedness for a teaching career; professional efficiency, which primarily focuses on self-efficacy regarding the teaching profession; and professional volition, which represents the respondent’s willingness to continue a teaching career when faced with other career options [10] . See Table 1.

3.3. Confirmatory Factor Analysis

To investigate the acceptable of the four-dimensional structure of the pre-service kindergarten teachers’ professional identity, we tried the confirmatory factor analysis. The results showed that CMIN/DF index value was 2.777, less than 5. The coefficients of NFI, RFI, IFI, TLI and CFI respectively are 0.910, 0.854, 0.941, 0.901 and 0.939, all greater than 0. 8. The coefficients of PNFI and PCFI respectively were 0.560 and 0.578, still greater than 0.5. The coefficient of RMSEA index is 0.047, less than 0.08. All the fitting indexes have reached the recommended value, and the model has been well fitted. See Figure 1.

3.4. Criterion-Related Validity Analysis

The criterion is the learning investment scale and the vocational maturity scale. The results showed that there was a significant positive correlation among teachers’ professional identity, subordinate factors and the scores of the two criterion-related scales, also the correlation coefficients of professional identity, learning investment and vocational maturity were respectively 0.266 and 0.242 (P < 0.001). See Table 2.

3.5. Reliability Analysis

The whole sample was used to test the internal consistency reliability of the student teacher professional identity scale. The results showed that the internal consistency of teacher’s professional identity scale was 0.801. The reliability of professional value, professional willingness, professional efficiency and professional volition respectively were 0.717, 0.628, 0.759 and 0.789.

100 pre-service kindergarten teachers were selected to investigate the retest reliability after two weeks. The results showed that the retest reliability of the teachers’ professional identity scale and subordinate factors were respectively 0.786, 0.702, 0.616, 0.743 and 0.752.

4. Discussion

This scale consists of 12 short items. According to experts’ analysis, each item reflects the professional identity of pre-service kindergarten teachers. During the test, pre-service kindergarten teachers generally respond to questions that are

Table 1. Exploratory factor analysis of the normal school students’ teacher’s professional identity scale.

Table 2. The correlation coefficient between pre-service kindergarten teachers’ professional identity, their subordinate factors, study engagement and career maturity.

easy to understand and answer. It takes about 5 minutes to fill out the questionnaire, which is easily accepted by pre-service kindergarten teachers.

Exploratory factor analysis found that the student teacher professional identity scale in pre-service kindergarten teachers contained 4 factors (professional value, professional willingness, professional efficiency and professional volition), which were consistent with the original author’s structure [5] . The results of confirmatory factor analysis show that the modified scale has certain good structural validity.

In terms of the criterion-related validity, the results show that there is a significant positive correlation among the professional identity scale, the learning investment scale and the vocational maturity scale, which is consistent with the theoretical concept of the scale. The theory manifests that students with high professional identity also have high levels of learning engagement and vocational

Figure 1. Standardized path figure of four-dimensional structure of pre-service kindergarten teachers’ professional identity.

maturity. This indicates that the revised scale has good validity of correlation. In terms of reliability, the internal consistency of teacher’s professional identity scale was 0.801 and the four subscales were from 0.628 to 0.789. Two weeks test-retest reliability was from 0.616 to 0.786. This suggests that the total scale and component scales have good internal consistency reliability and test-retest reliability.

5. Conclusion

From the above analyses, the revised student teacher professional identity scale in pre-service kindergarten teachers has good reliability and validity, which can be used as a standardized and effective tool to evaluate the pre-service kindergarten teachers’ professional identity.

Funding

This work was supported by the Jiangxi Normal University Project of Humanities and Social Sciences “The cultivation mechanism innovation and quality monitoring research of free normal students based on the professional identity perspective”, The key project of the 13th five-year plan of education science in jiangxi province in 2018” Research on the influence of work pressure and professional identity on teachers’ behavior and countermeasures” (18ZD012).

Conflicts of Interest

The authors declare no conflicts of interest regarding the publication of this paper.

Appendix―Chinese and English Versions of the Student Teacher Professional Identity Scale in Pre-Service Kindergarten Teachers (STPIS-PK)

请根据你的实际情况,对下面的内容做出相应的等级评定:其中,数字1表示“完全不同意”,2表示“比较不同意”,3表示“不确定”,4表示“比较同意”,5表示“完全同意”

According to your actual situation, please make corresponding rating assessment for the following content: “1” means “strongly disagree”, “2” means “relatively disagree”, “3” “means uncertain”, “4” means “relatively agree”, and “5” means “strongly agree”

Cite this paper
Zhang, L. and Wang, X. (2018) Reliability and Validity of the Student Teacher Professional Identity Scale in Pre-Service Kindergarten Teachers. Open Journal of Social Sciences, 6, 252-260. doi: 10.4236/jss.2018.68021.
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