1. A client-centred psychometric instrument: the development of ‘PSYCHLOPS’;Ashworth;Counselling and Psychotherapy Research,2004
2. Measuring mental health outcomes in primary care: the psychometric properties of a new patient-generated outcome measure, ‘Psychlops’ (‘psychological outcome profiles’);Ashworth;Primary Care Mental Health,2005
3. What does an idiographic measure (PSYCHLOPS) tell us about the spectrum of psychological issues and scores on a nomothetic measure (CORE-OM)?;Ashworth;Primary Care and Community Psychiatry,2007
4. Measuring psychological outcomes after cognitive behaviour therapy in primary care: a comparison between a new patient-generated measure ‘PSYCHLOPS’ (psychological outcome profiles), and ‘HADS’ (hospital anxiety and depression scale);Ashworth;Journal of Mental Health,2009
5. Association for Family Therapy and Systemic Practice 2009 Current practice, future possibilities http://www.aft.org.uk/SpringboardWebApp/userfiles/aft/file/Members/CurrentPracticeFuturePossibilities.pdf