Answer:
Case studies:
Description: In depth study of one perspective incorporating this method: psychoanalytic & humanistic
Benefits: less expensive than other methods
Weakness: may not generalize to the larger population
Personality inventories:
Description: objectively scored groups of questions designed to identify personality disposition
Perspective incorporated this method: trait
Benefits: generally reliable & empirically validated
Weakness: explore limited number of traits
Surveys:
Description: systematic questioning of a random sample of the population
Perspective incorporating this method: trait, social-cognitive, positive psychology
Benefits: results tend to be reliable & can be generalized to the larger population
Weakness: may be expensive, correlational findings
Step-by-step explanation: