The 5-Dimensional Personality Test (5DPT): relationships with two lexically based instruments and the validation of...

Area of Science:

• Psychology
• Personality Psychology
• Psychopathology

Background:

• The 5-Dimensional Personality Test (5DPT) assesses psychopathology vulnerability.
• Its superficial similarity to lexical personality measures warrants investigation.
• Existing measures like the NEO-Five Factor Inventory (NEO-FFI) and HEXACO-Personality Inventory-Revised (HEXACO-PI-R) are lexically based.

Purpose of the Study:

• To compare the 5DPT with lexically based personality inventories (NEO-FFI, HEXACO-PI-R).
• To examine the relationship between the 5DPT Absorption factor and schizotypal traits.
• To assess the 5DPT's construct validity in relation to psychopathology measures.

Main Methods:

• Correlational analysis between the 5DPT and NEO-FFI.
• Correlational analysis between the 5DPT and HEXACO-PI-R.
• Correlational analysis between the 5DPT and measures of schizotypy, creativity, and unusual experiences (SSQ, CEQ, Transliminality, LSHS, OLIFE-UE).

Main Results:

• The 5DPT does not require a sixth dimension for Honesty-Humility.
• Moderate variance shared between 5DPT dimensions and the Five-factor model/Big Five factors.
• The 5DPT Absorption scale significantly correlated with positive schizotypy symptom scales (SSQ) and similar constructs.

Conclusions:

• The 5DPT demonstrates moderate convergence with established personality models.
• The 5DPT Absorption factor is a valid correlate of positive schizotypal symptoms.
• The 5DPT is a useful tool for assessing vulnerability factors in psychopathology.