Internal Validation of the Latvian Version of 16‐Item Prodromal Questionnaire in A Help‐Seeking Adolescent Population: Psychometric Analysis and Associated Factors

Latvian translation of PQ-16 showed high internal reliability and validity levels. Positive PQ-16 screening was associated with female gender, worsened school performance, obstetric complications, substance abuse and experienced emotional violence. The average score of 9.17 positive answers and 73.8% of participants screening positive for attenuated psychotic symptoms is significantly higher than in recent studies under similar conditions.