Not quite true. A Professional psychologist would have a
psychology masters degree. To get masters for this
subj you MUST get honours.
Some of the job opportunity for non professional psychologist(no
masters) is working for the police,or work in a ad company(not that
pro psychologist dont do that but normally they would use their
abilities for better purposes). For some people who dont get
masters psychology degree, normally they would go for other routes,
and use this psy knowledge as a bonus. Eg: my pupils' welfare
teacher who has a psy degree.
To be a psychiatrist, you need to go for medicine, then specialise
psych, which is like so very hard. And you can administer
medicine.
Btw, ben1xy knows best 
