Some of the main types of psychological disorders are listed below.

The old classification system included two main types of psychological disorder which differ in severity and characteristic problem: Neurosis and Psychosis. Although these are no longer considered current, I'll start with these two types, as I believe that they still offer a way to differentiate certain of the classes of disorder now included in the new scheme as presented in the DSM:

There are two main types of psychology: Academic, and applied

Exploring Different Types of Psychology - All About Psychology

Information about all the different types of psychology out there.

Below you will find a brief description of each of these different abnormal psychology viewpoints, and then afterwards, a list of some of the main types of psychological disorders.

How Many Different Types Of Psychologists Are There?

Main Types of Psychology
Main Types Of Psychology

Three Major Types of Learning - University of Washington

I thought this book would be more informative but it's basically a history lesson and the main types of psychology

The Different Types of Psychologists | SMPMN

Same book describes main types of psychology tests, metrical characteristics, as well as their values in candidates' job placements

Writing in Psychology - College of Liberal Arts and Sciences