Second, flow was measured as a process with the survey proposed by Pearce et al. (2005). The FSS contains 36 questions with 5-point Likert-scale items and provides information about nine factors which are directly related to the flow state: balance between ability level and challenge (AC); merging of action and awareness (AA); clear goals (CG); direct and clear feedback (CF); concentration on task being performed (CT); sense of control (SC); loss of self-consciousness or inhibition (LS); distortion of sense of time (DT); and autotelic experience (AE) (Csikszentmihalyi, 1990).