Hope versus optimism in Singaporean adolescents: Contributions to depression and life satisfaction

This study explored the discriminant validity of optimism and hope in accounting for unique variance in depression and life satisfaction for 334 secondary school students from Singapore. Correlational analysis showed that optimism and hope were significantly correlated with each other. Hierarchical multiple regression findings indicated that both optimism and hope significantly predicted depression and life satisfaction even after controlling for hope and optimism, respectively. However, the incremental unique variance accounted for in depression by optimism is 6% more than that accounted for by hope in terms of R2Change values. Simultaneous multiple regression analyses using the subscale scores found that only agency, optimism, and pessimism contributed uniquely to the variance in depression and life satisfaction. Implications and limitations of these findings are discussed.