Browsing by Author "Matias, M."
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- Study of the influence of patient hydration in bone ScintigraphyPublication . Ferreira, S.; Cunha, L.; Fonseca, A.; Vieira, Domingos; Lemos, Joana; Matias, M.; Osorio, S.; Soares, S.; Silva, J. A.; Amorim, M. I.; Castro, R.; Metelo, Luís FranciscoBone Scintigraphy is a noninvasive and very sensitive Nuclear Medicine diagnostic method in detecting early bone lesions. Between the important technical details to consider when dealing with patient preparation there is the hydration level.
- Uncovering personality structure with the Inventory of Personality Organization : An exploration of factor structure with a Portuguese samplePublication . Barreto, João Francisco; Matias, M.; Carvalho, H.M.; Matos, P.M.The Inventory of Personality Organization (IPO) is a self-report measure intended to assess the severity of personality disturbance according to Otto F. Kernberg's model. To study factor structure and psychometric properties of the Portuguese version of IPO (IPO-Pt). Two independent samples of 586 individuals each were used for exploratory and confirmatory factor analyses. Different models were compared in terms of reliability and validity. A three-factor solution resulted, comprising dimensions labeled as Instability of Self, Instability of Others, and Psychosis. Internal consistency and temporal stability yielded acceptable to excellent results. Correlations with measures of self-concept coherence, emotion dysregulation, psychoticism, symptom severity, and personality disturbance were as expected, and sensitivity to clinical status was confirmed. IPO-Pt shows encouraging psychometric qualities and its latent structure resonates with important aspects of Kernberg's model, previous findings, and the DSM-5 level of personality functioning scale.