The present aim was to estimate the internal reliability and convergent validity of the Depression-Happiness Scale. Internal reliability was .90, and higher scores on the Depression-Happiness Scale were associated with more internal control (.28), higher self-esteem (.36), and lower trait anxiety (-.69) among 45 undergraduates at the University of Ulster. The results provide some evidence for the validation of the Depression-Happiness Scale as well as confirming previous research on the correlates of happiness.
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Cammock et al. (1994) studied this question.
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