Consider this statement: “At times you are extroverted, affable, and sociable, while at other times you are introverted, wary, and reserved.” What is it that probably makes such declarations so believable to so many people, given what you now know about the Barnum effect?

a. Such statements tend to be made deliberately difficult to understand.
b. People want to believe certain things and develop biases leading them towards these beliefs.
c. Such statements are broad generalizations AND people believe what they want to believe.
d. Such statements are broad generalizations that apply to many members of the populace.

c. Such statements are broad generalizations AND people believe what they want to believe.

The Barnum effect suggests that people tend to believe vague and general statements about themselves because they see them as personally meaningful and accurate. This is often because the statements could apply to a wide range of individuals, making them more believable to many people. Additionally, people tend to believe what they want to believe, so if a statement resonates with them or confirms their own beliefs about themselves, they are more likely to accept it as true.