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McBride, Orla and Butter, Sarah and Murphy, Jamie and Shevlin, Mark and Hartman, Todd K. and Bennett, Kate M. and Stocks, Thomas V. A. and Lloyd, Alex and McKay, Ryan and Gibson‐Miller, Jilly and Levita, Liat and Mason, Liam and Martinez, Anton P. and Hyland, Philip and Vallières, Frédérique and Karatzias, Thanos and Valiente, Carmen and Vazquez, Carmelo and Bentall, Richard P. (2022) Design, content, and fieldwork procedures of the COVID‐19 Psychological Research Consortium (C19PRC) Study – Wave 4. International Journal of Methods in Psychiatric Research, 31 (1). ISSN 1049-8931

Shevlin, Mark and Butter, Sarah and McBride, Orla and Murphy, Jamie and Gibson-Miller, Jilly and Hartman, Todd K. and Levita, Liat and Mason, Liam and Martinez, Anton P. and McKay, Ryan and Stocks, Thomas VA and Bennett, Kate M and Hyland, Philip and Vallieres, Frédérique and Valiente, Carmen and Vazquez, Carmelo and Contreras, Alba and Peinado, Vanesa and Trucharte, Almudena and Bertamini, Marco and Panzeri, Anna and Bruno, Giovanni and Granziol, Umberto and Mignemi, Giuseppe and Spoto, Andrea and Vidotto, Giulio and Bentall, Richard P. (2022) Measurement invariance of the Patient Health Questionnaire (PHQ-9) and Generalized Anxiety Disorder scale (GAD-7) across four European countries during the COVID-19 pandemic. BMC Psychiatry, 22 (1). pp. 1-9. ISSN 1471-244X

McBride, Orla and Butter, Sarah and Murphy, Jamie and Shevlin, Mark and Hartman, Todd K. and Hyland, Philip and McKay, Ryan and Bennett, Kate M. and Gibson‐Miller, Jilly and Levita, Liat and Mason, Liam and Martinez, Anton P. and Stocks, Thomas VA and Vallières, Frédérique and Karatzias, Thanos and Valiente, Carmen and Vazquez, Carmelo and Bentall, Richard P. (2021) Context, design and conduct of the longitudinal COVID‐19 psychological research consortium study–wave 3. International Journal of Methods in Psychiatric Research, 30 (3). ISSN 1049-8931

McBride, Orla and Murphy, Jamie and Shevlin, Mark and Gibson-Miller, Jilly and Hartman, Todd K. and Hyland, Philip and Levita, Liat and Mason, Liam and Martinez, Anton P. and McKay, Ryan and Stocks, Thomas V.A. and Bennett, Kate M. and Vallières, Frédérique and Karatzias, Thanos and Valiente, Carmen and Vazquez, Carmelo and Bentall, Richard (2020) Monitoring the psychological, social, and economic impact of the COVID‐19 pandemic in the population: Context, design and conduct of the longitudinal COVID‐19 psychological research consortium (C19PRC) study. International Journal of Methods in Psychiatric Research, 30 (e1861). ISSN 1049-8931