Cox, J., & Holden, J. (2003). Perinatal mental health: A guide to the Edinburgh Postnatal Depression Scale (EPDS). London: Royal College of Psychiatrists.
Dawson, G., Estes, A., Munson, J., Schellenberg, G., Bernier, R., & Abbott, R. (2007). Quantitative assessment of autism symptom-related traits in probands and parents: Broader Phenotype Autism Symptom Scale. Journal of Autism and Developmental Disorders, 37, 523-536.
Hay, D. F., Mundy, L., Roberts, S., Carta, R., Waters, C. S., Perra, O., .,. van Goozen, S. (2011). Known risk factors for violence predict 12-month-old infants' aggressiveness with peers. Psychological Science, 22, 1205-1211.
Hay, D. F., Perra, O., Hudson, K., Waters, C. S., Mundy, L., Phillips, R., .,. the CCDS Team. (2010). Identifying early signs of aggression: Psychometric properties of the Cardiff infant contentiousness scale. Aggressive Behavior, 36, 351-357.