This book investigates and reports a controversial issue regarding conflicting evidence in previous research as to the correlations among college students learning strategy LS use self efficacy SE levels and English receptive proficiency ERP After performing correlation and regression analyses on the data collected the students ERP levels were found to be significantly correlated to each and total LS use with low correlation coefficients Besides by using a Taiwanese original SE questionnaire with proper modifications students SE levels were significantly correlated to ERP levels and LS use with low and low to medium correlation coefficients respectively