This study disputed the unidimensionality of the Life Orientation Test (LOT). The eight-item LOT was administered to undergraduates in its original mixed form and in consistent optimism and consistent pessimism forms. Within the original form, two factors of optimism and pessimism were identified. However, when items had the same connotations, only one factor emerged. Researchers should acknowledge the two-factor structure of the LOT or reconstruct the items to maintain the unidimensional interpretation of the test.
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