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Why Use This Test?

1. Free. This Psychosis Spectrum Test is delivered to you free of charge and will allow you to obtain your scores related to hallucinations, delusions, disorganized speech, disordered thoughts, erratic behavior, flat affect, suspicion, anxiety, social withdrawal, and loss of pleasure.

2. Clinically oriented. The feedback delivered by this instrument is based on the work of Ph.D.s and is designed to deliver a clear clinical picture of the respondent’s current symptoms indicating psychosis as measured according to standardized items.

3. Statistical controls. Statistical analysis of the test is conducted to ensure maximum accuracy and validity of the test scores.

4. Made by professionals. The present test has been made with the input of people who work professionally with psychology and individual differences research.

Psychosis Spectrum Test

The psychosis spectrum encompasses a range of psychotic symptoms, all pointing to the presence of disorders such as Delusional Disorder, Schizotypal Personality Disorder, Schizophrenia, and Schizoaffective Disorder. However, there is considerable variation in the type and severity of the symptoms.

This test combines the insights of several prior efforts to research psychosis spectrum symptoms to bring you a single, composite test measuring psychotic occurrences across 10 different domains.

Where do you fall on the psychosis spectrum? For each of the following questions, indicate your level of agreement below.

Question 1 of 50

Others are plotting against me.

Disagree
Agree

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The IDRlabs Psychosis Spectrum Test (IDR-PST) was developed by IDRlabs. The IDR-PST is based on the work of Dr. Susan Rossell and her colleagues, who created the Questionnaire for Psychotic Experiences (QPE). The IDR-PST is not associated with any specific researchers in the field of psychopathology or any affiliated research institutions.

The IDRlabs Psychosis Spectrum Test was informed by the QPE’s criteria for psychosis as published in Rossell, S.L., Schutte, M., Toh, W., Thomas, N., Strauss, C., Linszen, M., Dellen, E., Heringa, S., Teunisse, R., Slotema, C., & Sommer, I. (2019). The questionnaire for psychotic experiences: An examination of the validity and reliability. Schizophrenia Bulletin, 45 (1), pp.78-87; Schutte, M., et al. (2020). Hallucinations and other psychotic experiences across diagnoses: A comparison of phenomenological features. Psychiatry Research, 292; Begemann, M., Linszen, M., de Boer, J., Hovenga, W., Gangadin, S., Schutte, M., & Sommer, I. (2019). Atopy increases risk of psychotic experiences. Frontiers in Psychiatry.

The work of Dr. Rossell and her colleagues has also informed some of the diagnostic criteria in the form of the widely used psychological instrument, the QPE, for clinical use especially by qualified mental health professionals. The present test is intended for educational purposes only. IDRlabs and the present IDRlabs Psychosis Spectrum Test are independent of the above researchers, organizations, or their affiliated institutions.

The Psychosis Spectrum Test is based on a famous and well-regarded inventory for the assessment of the clinical concept of schizophrenia spectrum and other psychotic disorders. However, free online tests and quizzes such as this one are solely first takes and cannot provide accurate assessments of your potential condition. Hence, the test is intended to be used for educational purposes only. A definitive mental health assessment can be made only by a qualified mental health professional.

As the publishers of this free online psychosis spectrum test, which allows you to screen yourself for the signs and symptoms of this condition, we have strived to make the test as reliable and valid as possible by subjecting it to statistical controls and validation. However, free online quizzes such as the present psychosis spectrum test do not provide professional assessments or recommendations of any kind; the test is provided entirely “as-is.” For more information about any of our online tests and quizzes, please consult our Terms of Service.