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The relationship between EFL teachers’ professional identity and their critical thinking: A structural equation modeling approach

Abstract The main purpose of this study is to investigate the relationship between Iranian English foreign language teachers’ professional identity and their critical thinking. The participants comprised 259 EFL teachers teaching at different language institutes in several cities of Iran. Their selection was based on convenience sampling and the participation was entirely voluntary. In this study, two instruments were used: professional identity questionnaire and critical thinking scale. Pearson’s correlation coefficient and structural equation modeling (SEM) were run to analyze the relationships among the components. The results revealed that all three sub-constructs of professional identity are predicted by critical thinking positively and significantly: Subject Matter Field, Didactical Field, and Pedagogical Field. Also, the results of Pearson correlation among components of professional identity and critical thinking indicated there is a high positive significant relationship between total professional identity and total critical thinking. Moreover, the highest correlation is seen between analysis and total professional identity, and the lowest correlation is seen between deductive reasoning and total professional identity. Finally, these findings were discussed with reference to the context of Iran.


Abstract:
The main purpose of this study is to investigate the relationship between Iranian English foreign language teachers' professional identity and their critical thinking. The participants comprised 259 EFL teachers teaching at different language institutes in several cities of Iran. Their selection was based on convenience sampling and the participation was entirely voluntary. In this study, two instruments were used: professional identity questionnaire and critical thinking scale. Pearson's correlation coefficient and structural equation modeling (SEM) were run to analyze the relationships among the components. The results revealed that all three sub-constructs of professional identity are predicted by critical thinking positively and significantly: Subject Matter Field, Didactical Field, and Pedagogical Field. Also, the results of Pearson correlation among components of professional identity and critical thinking indicated there is a high positive significant relationship between total professional identity and total critical thinking. Moreover, the highest correlation is seen between analysis and total professional identity, and the lowest correlation is seen between deductive reasoning and total professional identity. Finally, these findings were discussed with reference to the context of Iran.

ABOUT THE AUTHORS
Mehrdad Sheybani is a PhD student in TEFL, at Islamic Azad University of Torbat-e-heydarieh, Iran. He is an EFL lecturer and teacher. His research interests focus on language teaching/ learning assessment, effective/reflective teaching, and teachers' professional development.
Fatemeh Miri is a MA holder in TEFL, at Imam Reza International University, Mashhad, Iran. She is an EFL teacher.

PUBLIC INTEREST STATEMENT
Professional identity refers to one's beliefs, attitudes, motives, and experiences through which individuals define themselves, in their current or anticipated professional life. Critical thinking also refers to the reasonable and reflective thinking that is focused upon deciding what to believe and do. The purpose of this study is to investigate the relationship between Iranian English foreign language teachers' professional identity and their critical thinking. Examining the relationship between English language teachers' professional identity and their critical thinking can offer suggestions for EFL teachers and decision makers in this field in order to develop their critical thinking skills as well as the quality of professional identity for teachers to improve the quality of both teaching/learning environments in Iran. Also, it provides information for schools, institutes, and universities to evaluate their available main critical thinking skills programs. The results indicated there is a high positive significant relationship between total professional identity and total critical thinking.

Introduction
In recent years of investigation on teachers and teacher growth, the notion of professional identity has been taken into more consideration, and investigation on teachers' ideas and perspectives, teachers' narratives, and researches on biographies has been developed (Rodgers & Scott, 2008, p. 732). Identity researches give ideas regarding the components that affect a person's disposition towards a special profession (Tsakissiris, 2015). Sedikides and Brewer (2001) suggest that persons attempt to make their identity by their particular characteristic (individual), binary relations (relational) and group associations (collective). A person's feeling of "occupational or professional identity" is a powerful component of their sense of individual identity (Skorikov & Vondracek, 2011;Slay & Smith, 2011). Professional identity lets a career be considered as a conclusive and valuable contributor to the prosperity and growth of a nation (Low, Davey, & Davey, 2012). The composition of professional identity is considered as "a process of interplay between multiple contexts and the individual" (Bressler & Rotter, 2017, p.239). The political, social, and cultural circumstance of a person and the relation and communication with other persons is seen to be critical external components in the composition of identity (ibid).
Different studies have shown that the identity of teachers is connected with various components such as adjustment, efficacy, confidence, commitment, motivation, satisfaction in their teaching profession (Danielewicz, 2001). There is a need for more studies on the effect of teachers' identity on their professional development, by increasing worries about the feeling of EFL teachers about themselves and their professional identity (Gee, 2000). Since the speed of change and the expansion of knowledge require teachers to learn at many different times throughout their lives (Duta & Rafaila, 2014) and education is possibly one of the most significant social activities in the life of human beings, this issue is so significant for teachers and it is the nature of some of their worries about their professional life. Different studies have reported the important role of EFL teachers' identity in their professional development (Eick & Reed, 2002). In her study, Alaee (2015) showed that instructors' multiple intelligence types can affect their professional identity. Also, teachers' professional identity can affect their self-efficacy. Of particular importance to the current study was examining the degree to which teachers' professional identity could have a relationship with their critical thinking which is defined as "learning how to ask and answer questions of analysis, synthesis, and evaluation" (Paul, 1985, p. 37). Here, critical thinking includes two interrelated processes, including identifying and challenging assumptions, and imagining and examining others (Brookfield, 1991, p. 229). It seems obvious that teachers first need to be critical thinkers to be able to teach this ability to their students. While developing this skill is very essential for our teachers, most of the critical thinking studies have focused on learners (e.g., Dantas-Whitney, 2002;Faravani, 2006).
Critical thinking (CT) skills are not inherent. They are developed through time and experience. Such a fact is truly stressed by Hackworth (2009) in that she notes that for students to be able to use critical thinking skills in their professional careers, they must first be taught how to develop those skills. While designing course materials and improving educational levels, teachers' thinking and their attitudes are crucial factors. Khany and Fakhar Shahreza (2016) argued that improving teachers' critical thinking skills will significantly change their professional identity. Perez-Valverde and Ruiz-Cecilia (2013) also in their study revealed that professional identity can be developed by fostering critical thinking skills. Thus, this study aims to test this evidence in the Iranian context.
Examining the relationship between these two factors of English language teachers' professional identity and their critical thinking can offer suggestions for EFL teachers and decision makers in this field in order to develop their critical thinking skills as well as the quality of professional identity for teachers to improve the quality of both teaching/learning environments in Iran. In addition, gathering data based on professional identity and critical thinking provides information for schools, institutes, and universities to evaluate their available main critical thinking skills programs as well as future needed packages. Besides, it is important to know about the relationship between teachers' professional identity and their critical thinking to acquire whether critical thinking activities are worth attending and are available to teachers to attend in Iranian context especially English teachers in language institutes in Iran.
Therefore, this study aims to test this relationship. Furthermore, there are not many studies on these fields in Iran. Thus, teachers' mentality in the process of teaching is neglected to some extent. In addition, in no studies, the relationship between teacher professional identity and their critical skills have been explored. Hence, this research gap exists. Thus, the main purpose of this study is to examine the relationship between Iranian EFL teachers' professional identity and their critical thinking.

Review of the literature
Professional identity is one's identity and character as identified concerning a career or profession and to one's attachment to it (Bressler & Rotter, 2017). Tsakissiris (2015) mentioned that "professional identity is created through one's beliefs, attitudes, values, motives, and experiences through which individuals define themselves, in their current or anticipated professional life" (p. ii). professional identity is related to "the accrual of symbolic resources including status and esteem, mastery, sense of belonging and attachment" (ibid). Likewise, more definitions of professional identity depends on the mechanism of socialization (Ibarra, 1999;Schein, 1978). In this regard, individuals form a self-image which lets the senses of individual adequacy and content and autonomy in the perception and performance of the anticipated role (White & Ewan, 1997).
Professional identity establishes a psychological connection between a person and a specific career. According to Tsakissiris (2015), professional identity encompasses two interrelated parts: the interpersonal and the intrapersonal. Investigations on creating a professional identity come in three major categories (Pratt, Rockmann, & Kaufmann, 2006, p. 236): (a) career transition, (b) organizational socialization, and (c) intentional identity building. Teachers compose their own professional identity on the basis of their own background and experiences and feelings in response to the social, cultural and political environment and the interplay with other individuals (Bressler & Rotter, 2017).
Due to the importance of teachers' professional identity in their effectiveness and efficiency, so many researchers and teacher educators have had paid great attention to this issue. In their study, Bressler and Rotter (2017) examined the professional identities of immigrant teachers in Germany and what pertinence they assign to their migration experience in building their professional identity. The first group accepts pertinence of their migration experience for their teaching, and the second group definitely refuse it. The third group can be regarded "as between these two extremes, leaning more toward the Pedagogical Professional type".
Professional identity is also examined in the framework of pre-service teacher education. It is considered that the professional development influences pre-service teachers (e.g., Beauchamp & Thomas, 2009;Beijaard, Verloop, & Vermunt, 2000;Britzman, 1993;Freese, 2006;Olsen, 2008;Sachs, 2005). Sugrue (1997) reveals experimental proofs for the effect of important factors including the teacher's own school experience, nuclear and extended family members, teaching traditions, the policy context, and cultural archetypes. Chapman and Pyvis (2006) disclosed that the accomplishment of an academy curriculum in any discipline has completely an influence on a person's professional identity. Sadovnikovaa, Sergeevaa, Suraevab, and Kuzmina (2016) in their study explained the mechanism of professional identity crisis that teachers experience. They concluded that the condition of professional identity crisis starts "an experiencing process" in an individual's awareness. They also argued that "generalization of the teachers' feedback made it possible to state that the time prior to the professional crisis was described by the subjects as happy, bright, interesting and meaningful. Professional assignments were perceived by the teachers with enthusiasm and inspiration" (p.6910). Goodson and Cole (1994) in their study revealed that the institutional situation is widely effective in promoting the recognition of teachers' individual and professional capabilities. Connelly and Clandinin (1999) showed that institutional matters have critical effects on professional identity, especially, in the event of a program and educational alteration. They also revealed that teachers reacted variously to those institutional matters of professional identity which were struggled with the spatial and material borders of the professional view (Beijaard, Meijer, & Verloop, 2004, p. 120). Coldron and Smith (1999) showed that the teachers' professional identity indicated the context that the teacher was a component of and that professional identity was revealed in classroom performance and was exclusive. Dillabough (1999) mentioned that the "teaching self" is also an 'embedded self' which makes professional identity a complicated and versatile matter. Samuel and Stephens (2000) found that there is a struggle between achievement and desire about what the teacher can attain. This is showed in the different challenging effects on teachers' functions and identities in a developing world situation. However, the present study is aimed at finding the link between teachers' professional identity and their critical thinking. Hence, another distinctive variable related to teaching behavior, found to be of importance, is teaching critical thinking.
Critical thinking or CT was defined to be "the educational cognate of rationality" (Siegel, 1988, p. 32) and the "reasonable and reflective thinking that is focused upon deciding what to believe and do" (Norris & Ennis, 1989, p. 3). In addition, Paul (1995) defined CT as a unique and purposeful thinking in which the thinker consistently and commonly imposes norms and intellectual principles upon the thinking, controlling the construction of thinking, directing the construction of the thinking based on norms, and evaluating the influence of the thinking according to the aims, norms, and the standards [of thinking]. Abednia (2012) in his study reported on contributions of a critical EFL teacher education course to Iranian teachers' professional identity reconstruction by conducting interviews with a number of teachers. Three main changes were observed in their professional identities: "from conformity to and romanticization of dominant ideologies to critical autonomy, from no orientation or an instrumentalist orientation to a critical/transformative orientation of teaching, and from a linguistic and technical view to an educational view of second language education" (p. 706). In another study, Khany and Fakhar Shahreza (2016) examined the network of associations among teachers' professional development, professional identity, and their critical thinking skills. The results of structural equation modeling indicated that there was a close relationship among teachers' critical thinking skills, professional identity and subsequently professional development with acceptable goodness of fit indices. In addition, their results showed that there were significant interrelationships among some components of the main variables. Also, Ghanizadeh (2016) in her study explored the relationship among higher-order thinking skills (reflective thinking, critical thinking) and self-monitoring that contributes to academic achievement among university students. Her findings showed that critical thinking and all the components of reflective thinking predicted achievement positively and significantly with habitual action having the lowest impact and reflection exhibiting the highest influence. Moreover, selfmonitoring exerted a positive influence on achievement indirectly via understanding and reflection. It was also found that among the four subscales of reflective thinking, reflection, and critical reflection predicted critical thinking positively and significantly. Self-monitoring had a positive and significant impact on critical thinking. It also influenced understanding as well as reflection significantly and positively. Finally, Perez-Valverde and Ruiz-Cecilia (2013) in their study examined the contribution of critical thinking skills on teachers' professional identity and revealed that professional identity can be developed by fostering critical thinking skills.
As mentioned in the review of literature part, no studies have addressed the relationship between Iranian EFL teachers' professional identity and their critical thinking. The following research questions were posed and investigated in the current study: RQ1: Is there any significant relationship between EFL teachers' professional identity and their critical thinking? RQ2: Is there any significant relationship between the components of EFL teachers' professional identity and their critical thinking?

Participants
The participants comprised 259 EFL teachers teaching at different language institutes in several cities of Iran. Their selection was based on convenience sampling, and the participation was entirely voluntary. They were 159 females and 100 males whose age varied from 20 to 37 (

Instruments
In this study, two instruments were used: professional identity questionnaire by Beijaard et al.'s (2000) and critical thinking test by Honey (2004). Beijaard et al.'s (2000) questionnaire were utilized to assess a teacher's professional identity. This scale includes three sub-scales: teachers in the subject matter field (e.g., Necessity of keeping pace with new developments), teachers in the didactical field (e.g., Importance of taking into account the students' level), and teachers in the pedagogical field (e.g., Good/safe classroom climate as a necessary condition for teaching). The teachers showed their professional identity by awarding a total of 100 points to the three sub-scales of their identity. The reliability of the Persian adapted version of the questionnaire has been found to be .71. Also, in order to examine the construct validity of the post-method questionnaire, two types of factor analysis, namely Exploratory Factor Analysis (EFA) and Confirmatory Factor Analysis (CFA) were used.

Critical thinking scale
Critical thinking questionnaire developed and validated by Honey (2004) includes 30 items into the 5-point Likert scale type ranging from "never to always". The Likert-type CTQ is a reliable (0.86 on Cronbach's Alpha), valid and practical (it will accurately and efficiently assess the critical thinking ability of the teachers) measure of critical thinking ability which allows researchers to investigate micro-skills of note-taking, summarizing, questioning, paraphrasing, researching, inferencing, discussing, classifying, outlining, comparing and contrasting, distinguishing, synthesizing, inductive and deductive reasoning more effectively. So, it shows a high content and construct validity. The participants were divided into two groups of high and low critical thinkers based on their performance on a critical thinking test. According to Watson and Glaser (1980), the test-retest reliability of this test has been 0.81 (r = 0.81). It was completed in 60 minutes and the scoring was estimated out of 80. Taking the mean score (M = 65.23) into consideration, the students were divided into two groups of high and low critical thinkers. Those who scored 65 and above formed high critical thinkers' group (23 participants) and the rest (19 participants) were defined as low critical thinkers (Golpour, 2014).

Procedure
The main purpose of this study is to examine the relationship between Iranian EFL teachers' professional identity and their critical thinking. The data collection of this study took place in August and September 2017. This correlational study collected quantitative data through two questionnaires: professional identity questionnaire and critical thinking skill scale. A group of 259 EFL teachers from different language institutes were chosen conveniently as participants. Teachers answered the questionnaires in the presence of the researcher. The questionnaire took about 30-40 minutes without any time limitation. After a brief explanation of the purpose of the research, the teachers received the questionnaires. Moreover, the process of distribution of questionnaires was done by hand. We explained the purpose of completing the questionnaire and asked them not to write a name on them. They were required to provide demographic information such as gender and years of experience only. After gathering the data, they were calculated in SPSS software and were analyzed by structural equation modeling approach of Amos software. Table 1 summarizes the information obtained from Cronbach alpha analyses. As can be seen, the utilized questionnaires gained acceptable indices of Cronbach alpha as a whole as well as in their subscales. The Cronbach alpha for Total Professional Identity with 14 items is (.83), and total critical thinking with 30 items (.75). These numbers suggest that the items have relatively acceptable or good internal consistency.

Results
Descriptive statistics of sub-constructs of professional identity and critical thinking questionnaires are presented in Table 2.
As Table 2 shows, among three sub-constructs of professional identity, Didactical Field (3.74) has the highest mean score and Pedagogical Field (3.20) has the lowest mean score per item. Moreover, among five sub-constructs of critical thinking, Evaluation (3.54) has the highest mean score and Analysis (2.96) has the lowest mean score per item. To examine the research questions, the proposed model was tested using the Amos 24.00 statistical package. To check the strengths of the relationships among the components, the standardized estimates were examined. A number of fit indices were examined to evaluate the model fit: the chi-square magnitude which should not be significant, Chi-square/df ratio which should be lower than 2 or 3, the good fit index (GFI), and the comparative fit index (CFI) with the cut value greater than .90, and the Root Mean Square Error of Approximation (RMSEA) of about .06 or .07 (Schreiber, Nora, Stage, Barlow, & King, 2006). The results indicated that the chi-square (170.13), the df (159), the chi-square/df ratio (1.07), RMSEA (.041), GFI (.95), and CFI (.96), all the fit indices lie within the acceptable fit thresholds. Hence, it can be concluded that the proposed model had an acceptable fit with the empirical data. Figure 1 represents the schematic relationships between teachers' professional identity and their critical thinking. The results demonstrated that all the three sub-constructs of professional identity are predicted by critical thinking positively and significantly: Subject Matter Field (β = .49, p = .000), Didactical Field (β = .34, p = .000), and Pedagogical Field (β = .28, p = .000). Moreover, the Pearson correlation was conducted to find the possible relationships among components of professional identity and critical thinking questionnaires. Table 3 shows the results of Pearson correlation among the components of professional identity and critical thinking. As the results indicated there is a high positive significant relationship between total professional identity and total critical thinking (r = .64, p = .000). Moreover, the highest correlation is seen between Analysis and total professional identity (r= .71, p= .000) and the lowest correlation is seen between Deductive Reasoning and total professional identity (r= .21, p= .023)

Discussion and conclusion
As stated before, the present study sought to examine the relation between Iranian English teachers' professional identity and their critical thinking. With this aim, two research questions were raised: "Is there a significant relationship between Iranian English teachers' professional identity and their critical thinking? Is there any significant relationship between the components of EFL teachers' professional identity and their critical thinking?" To get a clear picture of the yielded results, the research question was addressed by examining the proposed model with SEM and using Pearson correlation coefficient. The results revealed that all the three sub-constructs of professional identity are predicted by critical thinking positively and significantly: Subject Matter Field, Didactical Field, and Pedagogical Field. Also, the results of Pearson correlation among components of professional identity and critical thinking indicated that there is a highly positive significant relationship between total professional identity and total critical thinking. Moreover, the highest correlation is seen between Analysis and total professional identity and the lowest correlation is seen between Deductive Reasoning and total professional identity.
This finding highlights the important role of critical thinking in forming teachers' professional identity in a teaching context and is in line with the findings of some studies such as Abednia (2012). He in his study reported the contributions of a critical EFL (English as a Foreign Language) teacher education course to Iranian teachers' professional identity reconstruction. Based on his finding, these courses created three main changes in the teachers' professional identities: from conformity to and romanticization of dominant ideologies to critical autonomy, from no orientation or an instrumentalist orientation to a critical/transformative orientation of teaching, and from a linguistic and technical view to an educational view of second language education. In another study, Voinea and PăOăúan (2013) revealed that a teacher in the postmodern world is a critical thinker and has an inventive conduct. They know that the didactical development is a vital asset for an effective learner. Undoubtedly, the didactical advancement is associated with critical thinking and the ability to reflect. The learners should consider their instructor as a model of critical thinker "who looks and chooses important data, asks and makes new inquiries, and holds up not a solitary answer; an educator who has academic esteems and advances these qualities in his conduct; an educator who has faith in his understudies' energy to change" (p.363). Also, the findings of this study confirm the findings of Perez-Valverde and Ruiz-Cecilia (2013) who demonstrated that professional identity can be developed by fostering critical thinking skills. Canh (2013) in his study argued that "one of the meanings of teaching on which their professional identity construction is centered is the construct of 'critical thinking,' which was mentioned frequently when the participants talked about their teaching" (p. 10). The teachers consider the aim of ELT as promoting critical thinking skills of learners and increasing new instructive esteems, not simply building up learners' aptitudes in utilizing English for communication. Such a professional identity positions these instructors as teachers whose duty is to expand learners' perspectives and to build up their critical thinking, not similarly as classroom dialect educators. Therefore, these studies show the important role of critical thinking for the construction of professional identity in language teaching and education. The findings of this examination can be useful to the EFL teachers in that they can regard the impact of critical thinking on the learning procedure and educate the related critical thinking methodologies to their students. The majority of the instructors do not know about the diverse sorts of critical thinking systems and cannot show them to their learners. It is for the instructive framework, particularly in Iran, to arrange workshops and courses such as in-service training courses for educators with a specific end goal to get the fundamental education. The findings of this research can likewise be helpful for the syllabus originators and course-book authors. They can consider executing critical thinking exercises during the time spent outlining and building up the materials (Golpour, 2014).
The significant limitation of this study is that teachers' professional identity and critical thinking were evaluated by the questionnaire. Further studies can take a mix method approach and evaluate teachers' professional identity and critical thinking by both questionnaires and interviews. Also, in this study, the researcher examined the relationship between EFL teachers' professional identity and their critical thinking among language institute teachers. Further research can examine the role of these two variables in public schools and compare them with the results of the present study. Also, other studies can be implemented to explore the relationship between EFL teachers' professional identity with other variables such as students' achievements.