English proficiency Collaborative teaching 1 EEG 1 Non-specialist teachers 1 Primary English education 1 Self-efficacy 1 Teaching experience 1 article 1 correlation coefficient 1 foreign language 1 human 1 human experiment 1 language proficiency 1 multivariate temporal response function 1 prediction 1 second language 1 second language proficiency 1 speech 1 speech rate 1