Cunha, Marina

Galhardo, Ana

Pinto-Gouveia, José

English

REPOSITÓRIO ABERTO  do Instituto Superior Miguel Torga

Galhardo - Anxiety Disorders and Somatoform Disorders; Depression; Obsessive-Compulsive Disorder and Personality and Personality Disorders-17-2706Galhardo, A.1, 2, Pinto-Gouveia2, J., & Cunha, M.1, 21Instituto Superior Miguel Torga, Coimbra, Portugal2CINEICC- Faculty of Psychology and Education Sciences of the University of Coimbra, Coimbra, Portugalanagalhardo@ismt.ptFaculty DisclosureX No, nothing to disclose Yes, please specify: Assessing obsessive-compulsive symptoms: the Portuguese version of the Padua InventoryThe Padua Inventory (PI) is a measure that has been widely used in clinical and research settings and studied in several countries, such as the US (e.g., Burns, Keortge, Formea, & Sternberger, 1996; Sternberger & Burns, 1990), the UK (Macdonald & de Silva, 1999), Australia (Kyrios, Bhar, & Wade, 1996) and Iran (Seyedsalehi, Nasir, Sulaiman, Seyedsalehi, & Seyedsalehi, 2016)PI Portuguese versionThis study sought out to explore the psychometric properties and factor structure of the PI Portuguese versionPI Portuguese versionParticipants:847 (468 women and 379 men) from the general population were recruited through a snowball procedureInstruments:Padua Inventory (PI) Maudsley Obsessive-Compulsive Inventory (MOCI) Beck Depression Inventory (BDI)Spielberger State Anxiety Inventory (STAI-X1)PI Portuguese versionProcedures:The PI was forward–backward translated from English toPortuguese and the two versions were then compared. TwoEnglish fluent independent researchers translated thePI instructions and items. A final translated version was found afterdiscussion of minor inconsistencies. This translated version wasthen back translated into Portuguese by a fluent nativespeaker(Hambleton, Merenda, & Spielberger, 2005; International Test Commission,2010)Participants gave their informed consent and completed the self-report measuresPI Portuguese versionData analysis:The data set was randomly split in order to conduct principalcomponent analysis (PCA) and confirmatory factor (CFA)analysis in two different samplesInternal consistency, convergent and discriminant validity andtest-retest reliability analyses were conductedPI Portuguese versionResultsFrom the PCA analysis four factors emerged:(1) Doubting/impaired control over mental activities(2) Contamination/washing/cleaning(3) Checking(4) Worries about losing control over motor behaviorsPI Portuguese versionResultsThe CFA analysis revealed a significant chi-squaredgoodness-of-fit.CFI = 0.82; GFI = 0.79; NFI = 0.81; TLI = 0.79: RMSEA =0.13PI Portuguese versionResultsInternal consistency: α = .95Convergent/discriminant validityTest-retest reliability (4 weeks; n = 54) = .69MOCI BDI STAI-X1PI .56** .40** .34****p < .001PI Portuguese versionDiscussionThe PI Portuguese version showed a similar factor structure to the one presented in other studies and revealed good psychometric propertiesNevertheless CFA results revealed that the model presented a poor fit to the data and indicated that the model would benefit from the establishment of correlations between pairs of error terms of items with identical contents. Furthermore, results from the CFA suggest that shortening the PI may be advantageousReferencesBeck, A., Ward, C., Mendelson, M., Mock, J., & Erbaugh, J. (1961). An inventory for measuring depression. Archives of General Psychiatry, 4, 561-571. Burns, G. L., Keortge, S. G., Formea, G. M., & Sternberger, L. G. (1996). Revision of the Padua Inventory of obsessive compulsive disorder symptoms: distinctions between worry, obsessions, and compulsions. [Comparative Study]. Behavior Research and Therapy, 34(2), 163-173. Hodgson, R. J., & Rachman, S. (1977). Obsessional-compulsive complaints. Behavior Research and Therapy, 15(5), 389-395. Kyrios, M., Bhar, S., & Wade, D. (1996). The assessment of obsessive-compulsive phenomena: psychometric and normative data on the Padua Inventory from an Australian non-clinical student sample. [Comparative Study]. Behavior Research and Therapy, 34(1), 85-95. Macdonald, A. M., & de Silva, P. (1999). The assessment of obsessionality using the Padua inventory: its validity in a British non-clinical sample. Personality and Individual Differences, 27, 1027-1046. Sanavio, E. (1988). Obsessions and compulsions: the Padua Inventory. Behavior Research and Therapy, 26(2), 169-177. Seyedsalehi, N., Nasir, R., Sulaiman, W. S. W., Seyedsalehi, A., & Seyedsalehi, S. (2016). Psychometric properties of the Padua Inventory in an Iranian sample. Asian Social Science, 12(2), 52-61. doi: 10.5539/ass.v12n2p52Spielberg, C. D. (1973). Manual for State-Trait Anxiety Inventory (Form Y). Palo Alto, USA: Consulting Psychologists Press.Sternberger, L. G., & Burns, G. L. (1990). Obsessions and compulsions: psychometric properties of the Padua Inventory with an American college population. Behavior Research and Therapy, 28(4), 341-345. 

Galhardo - Anxiety Disorders and Somatoform Disorders; Depression; Obsessive-Compulsive Disorder and Personality and Personality Disorders -17 -2706

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Galhardo - Anxiety Disorders and Somatoform Disorders; Depression; Obsessive-Compulsive Disorder and Personality and Personality Disorders -17 -2706

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