Prodromal Questionnaire (PQ)

The following versions are free to use for research, clinical purposes, and EHR platforms as long as users are not charged per use.

  • For consultation in implementation of a screener and use in particular settings, please contact Dr. Rachel Loewy at [email protected]
  • For translation permission and comments on a back translation, please contact Dr. Rachel Loewy at [email protected]
  • Dr. Loewy cannot give permission to use the PQ-16, instead please contact the first author Dr. Helga Ising ([email protected])

PQ-B

English (Original): Loewy, R. L., Pearson, R., Vinogradov, S., Bearden, C. E., & Cannon, T. D. (2011). Psychosis risk screening with the Prodromal Questionnaire--brief version (PQ-B). Schizophrenia research129(1), 42–46. https://doi.org/10.1016/j.schres.2011.03.029. Reference Link / Scale

Arabic: Scale

Chinese (Hong Kong): Scale

Chinese (Simplified): Xu L., Zhang T., Zheng L., Li H., Tang Y., Luo X., et al. (2016) Psychometric Properties of Prodromal Questionnaire-Brief Version among Chinese HelpSeeking Individuals. PLoS ONE 11(2): e0148935. doi:10.1371/journal.pone.0148935. Reference Link / Scale

Chinese (Traditional): Scale

Dari: Scale

Farsi: Scale

French: Scale

German: Scale

Hebrew: Scale

Hindi: Scale

Hmong: Translated by University of California, Davis. Scale

Indonesian: Kaligis, F., Marsubrin, R. I. I., Wiguna, T., Noorhana, S.W., Almasyhur, A. F. (2018). Translation and validation study of the Prodromal Questionnaire Brief Version into Indonesian language. Asian Journal of Psychiatry, 37, 96-101. Reference Link

Italian: Pelizza, L., Azzali, S., Paterlini, F., Scazza, I., Garlassi, S., Chiri, L. R., Poletti, M., Pupo, S., Raballo, A. (2017). The Italian Version of the Brief 21-Item Prodromal Questionnaire: Field test, psychometric properties and age-sensitive cut-offs. Psychopathology, 51, 234-244. Reference Link / Scale

Korean: Jang, Y., Lee, T., Hur, J., Kwon, J. (2018).Validation of the Korean version of the Prodromal Questionnaire-Brief Version in non-help-seeking individuals. Psychiatry Investigation, 16(2), 109-114. Reference Link  

Norwegian: Scale 

Pashto: Scale

Polish: Starkowska, A, Tyburski, E, Kucharska‐Mazur, J, Mak, M, Samochowiec, J. Assessing self‐reported clinical high risk symptoms: The psychometric properties of the polish version of the prodromal questionnaire‐brief and a proposal for an alternative approach to scoring. Early Intervention in Psychiatry. 2020; 1– 13. Reference Link / Scale

Spanish: Fonseca-Pedrero, E., Pérez-Albéniz, A., Ortuño-Sierra, J., & Inchausti, F. (2021). Evaluación de las experiencias de tipo psicótico en adolescentes españoles: Baremación del Prodromal Questionnaire-Brief (PQ-B). Revista de Psicopatologia y Psicologia Clinica, 26(1), 35–46. https://doi-org.ucsf.idm.oclc.org/10.5944/rppc.26916. Reference Link / Scale 

Vietnamese: Translated by University of California, Davis. Scale

Yoruba: A.O. Okewole, D. Ajogbon, A.A. Adeniji, O.O. Omotoso, S.S. Awhangansi, M.E. Fasokun, A.A. Agboola, A.K. Oyekanmi,Psychosis risk screening among secondary school students in Abeokuta, Nigeria: Validity of the Prodromal Questionnaire — Brief Version (PQ-B), Schizophrenia Research, Volume 164, Issues 1–3, 2015, Pages 281-282,ISSN 0920-9964. Reference Link

PQ - Brief Child

English (Original): Karcher, N. R., Barch, D. M., Avenevoli, S., Savill, M., Huber, R. S., Simon, T. J., Leckliter, I. N., Sher, K. J., & Loewy, R. L. (2018). Assessment of the Prodromal Questionnaire-Brief Child Version for Measurement of Self-reported Psychoticlike Experiences in Childhood. JAMA psychiatry75(8), 853–861. https://doi.org/10.1001/jamapsychiatry.2018.1334. Reference Link / Scale