Final answer:
Alek, described as lazy and undependable, is likely low in the Big 5 Personality trait conscientiousness.
Step-by-step explanation:
Alek's friends describe him as lazy and undependable. Alek is likely low in the Big 5 Personality trait conscientiousness. Conscientiousness is characterized by competence, self-discipline, thoughtfulness, and achievement-striving behavior, with people high on this factor being hardworking and dependable. Given Alek's description, it seems that a low score on conscientiousness would describe his behavior and attitude toward responsibilities. This personality factor is important because it has been positively correlated with academic success and is one of the Big Five personality factors identified in the Five Factor Model of personality.