Dispositional optimism is an individual difference promoting psychosocial adjustment and well-being during adolescence. Dispositional optimism was originally defined as a one-dimensional construct; however, empirical evidence suggests two correlated factors in the Life Orientation Test - Revised (LOT-R).The main aim of the study was to evaluate the dimensionality of the LOT-R. This study is the first attempt to identify the best factor structure, comparing congeneric, two correlated-factor, and two orthogonal-factor models in a sample of adolescents. Concurrent validity was also assessed.The results demonstrated the superior fit of the two orthogonal-factor model thus reconciling the one-dimensional definition of dispositional optimism with the bi-dimensionality of the LOT-R. Moreover, the results of correlational analyses proved the concurrent validity of this self-report measure: optimism is moderately related to indices of psychosocial adjustment and well-being.Thus, the LOT-R is a useful, valid, and reliable self-report measure to properly assess optimism in adolescence.
Brief report : Assessing dispositional optimism in adolescence - Factor structure and concurrent validity of the Life Orientation Test - Revised / D. Monzani, P. Steca, A. Greco. - In: JOURNAL OF ADOLESCENCE. - ISSN 0140-1971. - 37:2(2014), pp. 97-101.
Brief report : Assessing dispositional optimism in adolescence - Factor structure and concurrent validity of the Life Orientation Test - Revised
D. Monzani
;
2014
Abstract
Dispositional optimism is an individual difference promoting psychosocial adjustment and well-being during adolescence. Dispositional optimism was originally defined as a one-dimensional construct; however, empirical evidence suggests two correlated factors in the Life Orientation Test - Revised (LOT-R).The main aim of the study was to evaluate the dimensionality of the LOT-R. This study is the first attempt to identify the best factor structure, comparing congeneric, two correlated-factor, and two orthogonal-factor models in a sample of adolescents. Concurrent validity was also assessed.The results demonstrated the superior fit of the two orthogonal-factor model thus reconciling the one-dimensional definition of dispositional optimism with the bi-dimensionality of the LOT-R. Moreover, the results of correlational analyses proved the concurrent validity of this self-report measure: optimism is moderately related to indices of psychosocial adjustment and well-being.Thus, the LOT-R is a useful, valid, and reliable self-report measure to properly assess optimism in adolescence.File | Dimensione | Formato | |
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