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Green et al. Paranoid Thought Scales (GPTS)

Psychology: Mental Health1 sample item

About this scale

Paranoia is a way of irrational thinking in which a person thinks that others are trying to "get him" or her. Because of this a person suffering from paranoia might make false accusations against other people. Paranoia is a common symptom of psychosis , which is a psychiatric term for a person's irrational interpretation of reality. Ten to fifteen percent of the population experiences paranoid thoughts regularly (Freeman, 2007) .

Sample item(s)

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Notes

Psychology field scale. Check the PsyToolkit page and original paper for use rights before fielding.

Source & citation

Green, C. E. L., Freeman, D., Kuipers, E., Bebbington, P., Fowler, D., Dunn, G., & Garety, P. A. (2008). Measuring ideas of persecution and social reference: the Green et al. Paranoid Thought Scales (GPTS). Psychological medicine, 38 , 101-111. | Freeman, D. (2007). Suspicious minds : the psychology of persecutory delusions. Clinical Psychology Review, 27 , 425-457. | Startup, M. & Startup, S. (2005). On two kinds of delusions of reference. Psychiatry Research 137 , 87-92.

Paranoia
psychosis
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