Factor load

Factor 1―Teaching Learning and Research (8 observed variables)

(q15) Change teaching methods and strategies according to students’ situation

0.822

(q3) Compare the effect of different teaching methods in teaching

0.774

(q2) Often read books about how students learn English

0.749

(q14) Implement classroom research and apply the results to classroom teaching to improve the quality of teaching

0.738

(q1) Keep absorbing the knowledge of English teaching theory

0.669

(q16) Apply the results of teaching research in literature to our own teaching practice

0.664

(q17) Try Out a new teaching method and observe its effect on teaching

0.563

(q4) Read articles on English learning styles and strategies frequently

0.542

Factor 3―Expertise (3 observed variables)

(q5) Have solid English professional knowledge

0.775

(q6) Solid knowledge of English teaching

0.724

(q7) Have sufficient knowledge of educational theory

Factor 2―Instructional Communication (5 observed variables)

0.661

(q9) Communicate with colleagues about English teaching contents or methods

0.818

(q13) Research findings in communication teaching with colleagues

0.754

(q10) Communicating with colleagues about students’ English learning

0.703

(q12) Share lesson preparation with colleagues

0.680

(q11) Listening to expert lectures and learning teaching methods

0.655

Factor 3―Expertise (3 observed variables)

(q5) Have solid English professional knowledge

0.775

(q6) Solid knowledge of English teaching

0.724

(q7) Have sufficient knowledge of educational theory

0.661

Factor 4―Instructional feedback acquisition (3 observed variables)

(q8) Invite your colleagues to observe your class and get their opinions

0.794

(q19) Collect students’ opinions on teaching

0.763

(q18) Collect students’ feedback on their English learning

0.700