Latvian Clinical Personality Test: Development and Validation of the Preliminary Version psychometric Properties of the Latvian Clinical Personality Test

Abstract

Introduction Assessment of psychological health of an individual is necessary and important for a number of national institutions to fulfil its functions. In Latvia it was a lack of such a clinical personality assessment test, which would comply with the internationally accepted scientific standards and contemporary trends in the field. Objectives to develop 1) the theoretical concept, 2) initial item pool and 3) preliminary version of the Latvian Clinical Personality Test (LCPT). Aims based on thecombinedrational/theoretical and inductive/statistical strategy and emic-etic approach to develop a preliminary version of LCPT, and to perform the initial psychometric analysis of the LCPT. Methods in total 678 participants (70% clinical group) aged from 18 till 68 years completed the initial item pool of LCPT and demographical inventory; in addition clinical group participants were assessed with M.I.N.I (International Interview) by trained clinicians. Results In the result of the performed analysis the preliminary version of LCPT was developed. The obtained results are very promising showing that the preliminary version of the LCPT has acceptable psychometric properties; content, construct and criterion validity of the LCPT preliminary version has been approved. Conclusions LCPT is a new clinical personality tests developed based on the DSM-V and aimed to measure a wide range of clinical and personality disorders. The preliminary version of LCPT consists of 10 Clinical disorders scales and Personality disorder scales. There are 3 additional validity scales: Disclosure, Desirability and Debasement.