Being able to communicate can play an important role in achieving the desired goals in today’s world. This study investigated the interrelationships between communication apprehension (CA), privacy preferences (Pr), L2 WTC, and foreign language achievement (FLA) of learners as an indicator of their communication ability. Besides, the differences between males and females regarding these variables were examined. To this end, we administered three questionnaires to 250 English learners. Pearson’s correlation, t-test, and Structural Equation Modeling (SEM) were employed to analyze the data. The findings revealed that CA has a significant negative relationship with FLA. Considering Pr, FLA had a significant negative relationship with Anonymity. WTC and its subscales demonstrated a significant positive association with FLA. The results of the SEM denoted that CA is a negative predictor of L2 WTC, and FLA; L2 WTC positively predicted FLA; and privacy preferences neither predicted L2 WTC nor FLA. Regarding gender, the results indicated that males had a higher level of preference for Intimacy with Friends, WTW, and WTC.