Abstract
This study reports the development of new scales for assessing schizotypal traits. The four scales measure
unusual experiences, cognitive disorganisation, introvertive anhedonia and
impulsive non-conformity. The scales were incorporated into a new questionnaire, the Oxford-Liverpool Inventory of Feelings & Experiences (O-LIFE), in a form designed for use in the normal population and including filler items as well as the STA scale (as a known referent). Norms for the scales on a fresh sample of normal subjects (
N = 508) are reported, including sex and age differences. All the scales were found to have adequate internal consistency (coeff. alpha
s> 0.77). The items from the four new scales were submitted to factor analysis and a highly similar structure resulted. Their present and future use in psychosis-proneness research is discussed.