a motivation for them to continue their hobby. Recently there has been a model to explain different types of passion that contribute to engaging in an activity. Dualistic model According to researchers who have tested this model, "A dualistic model in which passion is defined as a strong inclination or desire toward a self-defining activity that one likes (or even loves), that one finds important (high valuation), and in which one invests time and energy." It is proposed that there exist two types of passion. The first type of passion is harmonious passion. "A harmonious passion refers to a strong desire to engage in the activity that remains under the person's control." This is mostly obtained when the person views their activity as part of their identity. Furthermore, once an activity is part of the person's identity then the motivation to continue the specific hobby is even stronger. The harmony obtained with this passion is conceived when the person is able both to freely engage in or to stop the hobby. It's not so much that the person is forced to continue this hobby, but on his or her own free will is able to engage in it. For example, if a girl loves to play volleyball, but she has a project due the next day and her friends invite her to play, she should be able to say "no" on the basis of her own free will. The second kind of passion in the dualistic model is obsessive passion. Being the opposite of harmonious passion. This type has a strong desire to engage in the activity, but it's not under the person's own control and he or she is forced to engage in the hobby. This type of passion has a negative effect on a person where they could feel they need to engage in their hobby to continue, for example, interpersonal relationships, or "fit in" with the crowd. To change the above example, if the girl has an obsessive passion towards volleyball and she is asked to play with her friends, she will likely say "yes" even though she needs to finish her project for the next day. Intrinsic motivation Since passion can be a type of motivation in hobbies then assessing intrinsic motivation is appropriate. Intrinsic motivation helps define these types of passion. Passion naturally helps the needs or desires that motivate a person to some particular