Sentence:  Non-autotelics' intrinsic motivation tends to increase if they devote time and give concentration, attention and energy to EFL tasks; some non-<WSD>autotelic</WSD> students become more <WSD>autotelic</WSD> if they perceive the activities interesting and important for their future goals; if some of the non-autotelics devote some time and focus their attention on an activity, that activity becomes more <WSD>autotelic</WSD>. 
Meaning of the word marked with <WSD> tags:  Containing its own meaning or purpose; deriving meaning and purpose from within.