Short scales for measuring schizotypy.
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.
Mason
Oliver
O
Sub-Department of Clinical Health Psychology, University College London, Gower Street, London WC1E 6BT, United Kingdom. o.mason@ucl.ac.uk
Linney
Yvonne
Y
Claridge
Gordon
G
D000328:Adult; D003072:Cognition Disorders / Q000175:diagnosis / Q000453:epidemiology; D007174:Disruptive, Impulse Control, and Conduct Disorders / Q000175:diagnosis / Q000453:epidemiology; D005260:Female; D006801:Humans; D008016:Life Change Events; D008297:Male; D012569:Schizotypal Personality Disorder / Q000453:epidemiology* / Q000235:genetics / Q000523:psychology*; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D014427:Twins / Q000523:psychology*