Oliver Mason1, Yvonne Linney, Gordon Claridge. 1. Sub-Department of Clinical Health Psychology, University College London, Gower Street, London WC1E 6BT, United Kingdom. o.mason@ucl.ac.uk
Abstract
BACKGROUND: This study reports short scales for measuring several dimensions of schizotypy in the normal population based on a large twin sample. METHODS: The four short scales use items drawn from a longer instrument, the Oxford-Liverpool Inventory of Feelings and Experiences. Using concordance estimates from MZ and DZ pairs, the items were selected both to have a high heritability and to offer broad coverage of each trait domain. RESULTS: Preliminary descriptive statistics are reported for the short scales and suggest adequate reliability. CONCLUSIONS: New scales offer a time efficient and reliable method of studying proneness to psychosis in large N designs.
BACKGROUND: This study reports short scales for measuring several dimensions of schizotypy in the normal population based on a large twin sample. METHODS: The four short scales use items drawn from a longer instrument, the Oxford-Liverpool Inventory of Feelings and Experiences. Using concordance estimates from MZ and DZ pairs, the items were selected both to have a high heritability and to offer broad coverage of each trait domain. RESULTS: Preliminary descriptive statistics are reported for the short scales and suggest adequate reliability. CONCLUSIONS: New scales offer a time efficient and reliable method of studying proneness to psychosis in large N designs.
Authors: David W Evans; Laina G Lusk; Mylissa M Slane; Andrew M Michael; Scott M Myers; Mirko Uljarević; Oliver Mason; Gordon Claridge; Thomas Frazier Journal: J Child Psychol Psychiatry Date: 2017-10-30 Impact factor: 8.982
Authors: Preethi Premkumar; Ulrich Ettinger; Sophie Inchley-Mort; Alexander Sumich; Steven C R Williams; Elizabeth Kuipers; Veena Kumari Journal: Hum Brain Mapp Date: 2011-03-21 Impact factor: 5.038
Authors: Ulrich Ettinger; Christine Mohr; Diane C Gooding; Alex S Cohen; Alexander Rapp; Corinna Haenschel; Sohee Park Journal: Schizophr Bull Date: 2015-03 Impact factor: 9.306