This research will begin with the statement that understanding personality is complex and calls for application of certain models in getting an insight to personality. Some studies use specific traits to examine personality while others use the big five model to examine various personality traits. Indeed, many researchers and studies relied on the big five-factor model to carry out research on psychology studies in the recent past. As such, there have been questions to the use of the big five-factor model over examining a specific trait in such psychology studies. The controversy has led to different views on the benefits and demerits of using the big five-factor model over examining a specific trait. The big five-personality trait also known as five-factor model is considerably a generalization of personality traits. The big five-personality trait uses five broad dimensions to describe personality. The five dimensions include extraversion, neuroticism, openness, conscientiousness, and agreeableness. The extraversion trait reflects positive attributes such as, sociability, assertiveness, and excitability. The neuroticism trait depicts negative emotions such as anger and depression. On the other hand, the openness trait encompasses creativity, curiosity, and insightfulness. According to various studies, the big five model has an advantage over the use of specific traits to examine personality because the model is universal and can accurately and clearly define specific characteristics in a given population. Indeed, the big five model would have given a specific and clear direction on the aspects of impulsive behaviour which predict disordered eating in the appetite research. Actually, in this study, which seemingly used the specific traits to examine personality, the researchers implicated impulsivity as a personality trait associated with obesity, binge eating and restrained eating. However, the study established that impulsivity has multiple dimensions and it was thus unclear which aspects of impulsive behaviour best predict disordered eating. Such uncertainty and ambiguity was also present in another study that used specific traits to treat college women at risk for bulimia. The big five model would solve such an ambiguity as it can establish the specific aspect of impulsive behavior, which predicts disordered eating using the five dimensions of the big five model. The application of the five dimensions helps in establishing the specific personality traits in clear and accurate manner. Moreover, the big five model has an advantage of being compatible with other features which seek to examine a certain personality trait. Indeed, the study examining the relationship between burnout as measured by the Maslach Burnout Inventory and the Big Five personality factors confirms this advantage. The study established that emotional stability predicted emotional exhaustion and that emotional stability, extraversion, and intellect/autonomy predicted depersonalization. Notably, extraversion is a big five dimension that is compatible with the Maslach Burnout Inventory in this context. Moreover, the study established that extraversion and emotional stability predicted personal accomplishment, which further confirms the compatibility nature of the big-five model. Additionally, in another study big-five traits, which included conscientiousness, emotional stability, extraversion, and openness, correlated significantly and positively with life satisfaction, which is a personality.