Why does the text's organizational structure support the author's purpose?

Doing a science fair project should i do cafeteria waste or solar power

You are a psychologist who has been asked to write a brief report about the possible causes of anxiety (nervousness, fears, in your report, write up a summary that explains and examines anxiety according to each of the psychological perspectives: psychoanalytic behavioral cognitive humanistic biological sociocultural

Love, which can’t be observed or measured directly, is an example of psychological construct