PLS Path Model with the IPDS as second orders construct that explains PDs*. *Explanation of abbreviations: PD: personality disorders; IPDS: The Iowa Personality Disorders Screen; BRD: Borderline PD; HST: Histrionic PD, PAR: Paranoid PD; AVD: Avoidant PD, NAR: Narcissistic PD. Explanation of statistics: All numbers in parentheses are t-values (>1.96 = p ≤ 0.05). The number 0.64 above the line between IPDS and PD is a standardized regression coefficient and 0.642 indicates how much IPDS explains of the variance in PD (i.e. 41%). The eleven numbers at the bottom of Figure 1 (i.e. without corresponding parentheses) indicates the amount of measurement error in each IPDS-item. The remaining numbers in Figure 1 represents second and first order factor loadings.