Abstract
The main goal of the present study was to examine the dimensional structure and gather new sources of validity evidence of the Oxford–Liverpool Inventory of Feelings and Experiences short version (sO-LIFE) in a large sample of young adults. The sample was made up of 1002 college students (M=21.11years; SD=3.92). The study of the internal structure, using confirmatory factor analysis, revealed that both three and four-factor solutions fitted well to the data. Furthermore, new measurement models, such us Exploratory Structural Equation Modelling (ESEM), showed that the hypothetical three-factor model displayed better goodness-of-fit indices than the other competing models tested. Multi-group ESEM showed that the three-factor model had partially strong measurement invariance across gender. The reliability of the scores ranged from 0.78 to 0.87. The sO-LIFE scores showed good convergent and discriminant validity with other measures of schizotypal personality traits and hedonic capacity. These results provide new information about the factor structure of schizotypy in non-clinical samples and support the use of sO-LIFE as a measure of schizotypy in nonclinical samples.
•The sO-LIFE scores showed adequate psychometric properties.•Three- and four-factor models of schizotypy displayed better goodness-of-fit indices.•Multi-group ESEM showed that the three-factor model had partial strong measurement invariance across gender.•The sO-LIFE scores were associated with schizotypal personality traits and hedonic capacity.