Measurement of Unwanted Thought Suppression Strategies with the Thought Control Questionnaire in the General Polish Population: A Confirmatory Factor Analysis and Validation.

Introduction: Although psychological studies have suggested both the desired and paradoxical effects of unwanted thought suppression, we still know little about this mechanism. It has been proposed that individual differences in using specific strategies to suppress intrusions explain why contradictory effects of suppression are observed. The main aims of the study were to investigate the factor structure of the Polish version of Thought Control Questionnaire (TCQ) and verify whether this structure corresponds to the original version of the TCQ measurement.

People with diabetes need a lower cut-off than others for depression screening with PHQ-9.

Aims: This study evaluated the psychometric characteristics of the Polish version of the PHQ-9 in detecting major depression (MDD) and 'MDD and/or dysthymia' in people with and without type 2 diabetes.

Methods: Participants were randomly selected from a diabetes outpatient facility (N = 216) and from among patients admitted to a medical center and psychiatric hospital (N = 99). The participants completed the PHQ-9.