Adolescent anhedonia is a multidimensional construct defined as the loss of enjoyment or pleasure across multiple domains of life. Anhedonia is concurrently associated with substantial impairment and distress, and it prospectively predicts the onset, severity, and treatment of depression. Despite its demonstrated importance, a limited number of…

Five studies document the validity of a new 8-item scale designed to measure "positivity," defined as the tendency to view life and experiences with a positive outlook. In the first study (N = 372), the psychometric properties of Positivity Scale (P Scale) were examined in accordance with classical test theory using a large number of…

Psychometric properties of the Almost Perfect Scale and the Family Almost Perfect Scale were evaluated using Indian college students studying in India (N = 132). Three classes of perfectionists--adaptive, maladaptive, and nonperfectionists--that mirrored past studies were compared on self-esteem and depression. (Contains 3 tables and 3 figures.)