A Comparison of Two Delivery Modalities of a Mobile Phone-Based Assessment for Serious Mental Illness: Native Smartphone Application vs Text-Messaging Only Implementations

John Ainsworth   ¹ , BSC(Hons), MSc ;   Jasper E Palmier-Claus   ² , BSC, MSc, PhD ;   Matthew Machin   ¹ , BEng, CEng, MIET ;   Christine Barrowclough   ² , BA, MSc, PhD ;   Graham Dunn   ³ , BA, MSc, MA, PhD ;   Anne Rogers   ⁴ , BA, MSc, PhD ;   Iain Buchan   ⁵ , MD, FFPH ;   Emma Barkus   ⁶ , BA, MSc, PhD ;   Shitij Kapur   ⁷ , MBBS, PhD, FRCPC ;   Til Wykes   ⁷ , PhD ;   Richard S Hopkins   ⁸ , MB ChB ;   Shôn Lewis   ⁹ , MD, FMedSci

¹ NIBHI Manchester Health e-Research Centre, Institue of Population Health, University of Manchester, Manchester, United Kingdom

² School of Psychological Science, Division of Clinicial Psychology, University of Manchester, Manchester, United Kingdom

³ Centre for Biostatistics, Institute of Population Health, University of Manchester, Manchester, United Kingdom

⁴ Health Sciences, University of Southampton, Southampton, United Kingdom

⁵ NIBHI Manchester Health e-Research Centre, Institute of Population Health, University of Manchester, Manchester, United Kingdom

⁶ School of Psychology, University of Wollongong, Wollongong, Australia

⁷ Institute of Psychiatry, Kings's College London, London, United Kingdom

⁸ Manchester Mental Health and Social Care Trust, Manchester, United Kingdom

⁹ Institute of Brain, Behaviour and Mental Health, University of Manchester, Manchester, United Kingdom