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Title: Reliability and construct validity of the Portuguese version of the Psychological Capital Questionnaire
Authors: Antunes, A.
Caetano, A.
Cunha, M. P.
Keywords: Psychological capital
Construct validity
Incremental validity
Issue Date: 2017
Publisher: Ammons Scientific
Abstract: The Psychological Capital Questionnaire (PCQ) is the most commonly used measure for assessing psychological capital in work settings. Although several studies confirmed its factorial validity, most validation studies only examined the four-factor structure preconized by Luthans, Youssef, and Avolio, not attending to empirical evidence on alternative factorial structures. The present study aimed to test the psychometric properties of the Portuguese version of the PCQ, by using two independent samples (NS1 = 542; NS2 = 115) of Portuguese employees. We conducted a series of confirmatory factor analyses and found that, unlike previous findings, a five-factor solution of the PCQ best fitted the data. The evidence obtained also supported the existence of a second-order factor, psychological capital. The coefficients of internal consistency, as measured by Cronbach's alpha, were adequate and test-retest reliability suggested that the PCQ presented a lower stability than personality factors. Convergent validity, assessed with average variance extracted, revealed problems in the optimism subscale. The discriminant validity of the PCQ was confirmed by its correlations with Positive and Negative Affect and Big Five personality factors. Hierarchical regression analyses showed that this measure has incremental validity over personality and affect when predicting job performance.
Peer reviewed: yes
DOI: 10.1177/0033294116686742
ISSN: 0033-2941
Accession number: WOS:000400567900012
Appears in Collections:BRU-RI - Artigos em revistas científicas internacionais com arbitragem científica

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