Procrastination is considered as the voluntary delay of action, despite expecting adverse outcomes due to the delay. The prevalence of procrastination has reported up to 95% among students (
1). Procrastination results in the decrease of academic performance (
2), and on the other hand, it is related to anxiety (
3). While procrastination is used to avoid unpleasant consequences, and as a result is considered as an emotion regulation (
4), studies show that procrastination can lead to a significant increase in distress (
5). Although the relationship between anxiety and academic procrastination has been investigated in western cultures, underlying mechanisms in this relationship are not fully known.
One of the variables that is related to anxiety and academic procrastination is acceptance. Acceptance has been conceptualized as a regulatory process which enables people to experience the present moment without judgment or avoidance (
6). Acceptance has a significant correlation with anxiety (
7). Additionally, procrastination is negatively correlated with acceptance (
8) because procrastination is a way to avoid and run away from negative thoughts, sensations, and emotions to feel better in the short term (
9). Acceptance and commitment therapy (ACT) suggests psychological problems originate from experiential avoidance (
10). ACT highlights the importance of skills in non-judgmental acceptance of present-moment experiences which seems especially well suited to the treatment of academic procrastination, that is a kind of avoidance (
11). Acceptance is aimed at developing psychological flexibility which is considered as the ability to choose activities according to one’s values in spite of unpleasant or unwanted private feelings and thoughts. Mindfulness is another construct that is associated with lower levels of rumination, worry, anxiety, depression, and anger (
12). Mindfulness is considered as a non-judgmental awareness of the present feelings, thoughts, and in general experiences with openness and acceptance (
13). Excessive orientation toward the future or past in dealing with stressors may have a correlation with anxiety (
13). A study showed procrastination was negatively correlated with mindfulness (
4), and low mindfulness explained stress associated with procrastination. A study showed acceptance and mindfulness contributed to the variance of procrastination (
8). Procrastinators experience lower acceptance of themselves (
14). A study investigated the relation between procrastination and anxiety, considering self-compassion as a mediator (
3). Another research investigated the relationship between anxiety and acceptance in Iranian students (
15). However, research on the relationship among these variables is still in its nascent stages. Previous studies have focused on investigating the efficacy of acceptance-based interventions on procrastination and anxiety disorders in the clinical sample. Noteworthy, most studies have investigated the effectiveness of mindfulness-based therapy on anxiety disorders in clinical samples. Only a few studies have studied the relationship between mindfulness and state anxiety in a non-clinical sample. It is not clear if acceptance and mindfulness can increase the prediction of academic procrastination over trait anxiety in the Iranian culture, since the judgment, lack of acceptance, and procrastination are strongly influenced by cultural differences (
3,
16). Judgment and lack of acceptance are more common in Eastern cultures like Iran (
3). Prior researches showed that Eastern participants are more likely to judge themselves (
3). On the other hand, Eastern participants tend to show a higher level of procrastination (
16).