Multidimensional factor structure of positive schizotypy.

Area of Science:

• Psychology
• Psychiatry
• Personality Science

Background:

• Schizotypy involves traits similar to schizophrenia and is linked to cluster A personality disorders.
• Previous research identified distinct positive and negative schizotypy factors.
• The internal structure of positive schizotypy remains incompletely understood, with suggestions of multidimensionality.

Purpose of the Study:

• To investigate the factor structure of positive schizotypy.
• To determine if positive schizotypy is best represented by a single factor or multiple distinct factors.
• To examine the relationships between identified positive schizotypy factors and broader personality traits.

Main Methods:

• Employed four distinct analytical approaches to examine the factor structure of positive schizotypy.
• Utilized factor modeling, comparing models with varying numbers of factors and hierarchical structures.
• Applied Schmid-Leiman transformation and analyzed differential correlations with Five-Factor Model personality traits.

Main Results:

• A three-factor model (paranoia, referential thinking, cognitive-perceptual) demonstrated superior fit compared to models with fewer factors.
• A second-order factor model did not adequately explain the interrelations among the first-order factors.
• The first-order factors retained meaningful variance even after accounting for a potential higher-order factor.
• These three factors exhibited differential associations with Five-Factor Model personality traits.

Conclusions:

• Positive schizotypy is a multidimensional construct.
• It comprises at least three distinct, yet correlated, factors: paranoia, referential thinking, and cognitive-perceptual.
• These factors have unique relationships with core personality dimensions, underscoring their distinctiveness.