Credibility: What is the minimum requirement for a nonfiction book, article, or speaker to have credibility regarding multiple personality?

Are opinions about multiple personality credible if the person is

1. a psychiatrist?

2. a psychologist?

3. a psychoanalyst?

4. a psychotherapist?

5. a scholar?

6. well-respected?

Not necessarily! Often not!

The minimum requirement for credibility is that, for months or years, the person has talked with people who have multiple personality, including conversations with their alternate personalities.

Any author or speaker without that experience is not credible in regard to multiple personality.