TY - JOUR
T1 - Multidimensional factor structure of unusual experiences: new measures of positive schizotypy
AU - Charabi, Maha
AU - Kravariti, Eugenia
AU - Eysenck, Michael
AU - Tsakanikos, Elias
PY - 2019/5/14
Y1 - 2019/5/14
N2 - Positive schizotypy has been employed as a unitary construct in previous experimental research despite the phenomenological heterogeneity of the schizotypal experiences that describes. In the present paper, we report two psychometric studies on the Unusual Experiences (UE) scale, a widely employed measure of positive schizotypy from the Oxford –Liverpool Inventory for Feeling and Experiences (O-LIFE; Mason, Claridge, & Jackson, 1995). Study 1 (N=829) explored the factor structure of UE and model fit was assessed Confirmatory Factor Analysis (CFA). Study 2 (N=108) evaluated the validity of the factors by employing well-established measures of schizotypy related to positive symptomatology. The results support a theoretically meaningful 3-factor solution: UE1 Unusual perceptions, UE2 Unusual salience/reality monitoring and UE3 Unusual beliefs. The new subscales had adequate psychometric properties. We propose that the new subscales have the potential to improve research cohesion, motivate further research and enhance understanding of experimental correlates of positive schizotypy.
© 2019, Elsevier. The attached document (embargoed until 14/05/2021) is an author
produced version of a paper published in PERSONALITY AND INDIVIDUAL DIFFERENCES uploaded in accordance
with the publisher’s self- archiving policy. The final published version
(version of record) is available online at the link. Some minor differences
between this version and the final published version may remain. We suggest you
refer to the final published version should you wish to cite from it.
AB - Positive schizotypy has been employed as a unitary construct in previous experimental research despite the phenomenological heterogeneity of the schizotypal experiences that describes. In the present paper, we report two psychometric studies on the Unusual Experiences (UE) scale, a widely employed measure of positive schizotypy from the Oxford –Liverpool Inventory for Feeling and Experiences (O-LIFE; Mason, Claridge, & Jackson, 1995). Study 1 (N=829) explored the factor structure of UE and model fit was assessed Confirmatory Factor Analysis (CFA). Study 2 (N=108) evaluated the validity of the factors by employing well-established measures of schizotypy related to positive symptomatology. The results support a theoretically meaningful 3-factor solution: UE1 Unusual perceptions, UE2 Unusual salience/reality monitoring and UE3 Unusual beliefs. The new subscales had adequate psychometric properties. We propose that the new subscales have the potential to improve research cohesion, motivate further research and enhance understanding of experimental correlates of positive schizotypy.
© 2019, Elsevier. The attached document (embargoed until 14/05/2021) is an author
produced version of a paper published in PERSONALITY AND INDIVIDUAL DIFFERENCES uploaded in accordance
with the publisher’s self- archiving policy. The final published version
(version of record) is available online at the link. Some minor differences
between this version and the final published version may remain. We suggest you
refer to the final published version should you wish to cite from it.
KW - delusions; hallucinations; psychosis-like symptoms; positive symptoms of schizophrenia; positive schizotypy; scale development
UR - https://www.sciencedirect.com/science/article/pii/S0191886919302697
UR - https://www.scopus.com/pages/publications/85065525671
U2 - 10.1016/j.paid.2019.04.039
DO - 10.1016/j.paid.2019.04.039
M3 - Article
SN - 0191-8869
VL - 147
SP - 272
EP - 279
JO - PERSONALITY AND INDIVIDUAL DIFFERENCES
JF - PERSONALITY AND INDIVIDUAL DIFFERENCES
ER -