Personality Diagnostic Questionnaire for the DSM IV
The Personality Diagnostic Questionnaire - version 4 is widely used by health professionals to screen clients for the presence DSM IV Axis II personality disorders.
The test is available in paper-based and on-line formats
Indivudals may also obtain an on-line personal evaluation through this site.
The PDQ-4 and its predecessors have enjoyed considerable success. Over a hundred articles have been published on the PDQ-R , PDQ-III, PDQ-III-R and the PDQ-4. See references on side bar.
The popularity of the test is rapidly growing and it is now used in over 25 countries world wide. Practictions in the U.S., UK and Canada are its primary users.
The test consists of 99 True/False questions that are followed-up with clinical severity screen if necessary.
The PDQ-4 can be adminstered in paper and pencil format or on-line

The Official PDQ-4 website
A Leading Personality Disorder Screening Tool
Personality Diagnostic Questionnaire for the DSM IV
On-line Person use version (unavailable currently being upgraded)
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Environmental Stimulation Sensitivity Assessment
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