1 Measuring and Modifying Moods: An Introduction.- References.- 2 On the Paucity of Positive Emotions.- The Relative Frequency of Positive and Negative Emotional Concepts.- The Meaning of Emotional Concepts.- Of Emotions in General.- Of Positive and Negative Emotions.- The Attribution of Emotion as a Function of Response Outcomes..- The Relationship between Emotional Concepts and Emotional Behavior.- The Contribution of Physiological Arousal.- A Further Note on the Meaning of Emotional Concepts.- Emotions as Transitory Social Roles.- Implications for the Assessment and Modification of Emotional Behavior.- Implications for Assessment.- Implications for the Modification of Behavior.- References.- 3 Measurement Implications of a Psychoevolutionary Theory of Emotions.- Emotions as Inferences.- The Language of Emotion.- Nonverbal Communication of Affect.- Emotions in Animals.- Peer Group Behavior.- Conclusion.- Emotions and Evolution.- Tests of Emotion-Personality.- Other Theory-Based Measures.- Parent-Child Interactions.- Ego Defenses.- Summing Up.- References.- 4 To Risk or Not to Risk: Predicting Behavior from Negative and Positive Emotional States.- The Multiple Affect Adjective Check List (MAACL).- Dimensions of Affect.- Zipers State Test.- Development of a Sensation Seeking State Scale.- To Risk or Not to Risk.- Relation between SS and A States.- Prediction of Drug Decision.- Risk, Sensation Seeking, and Anxiety.- Performance and Affect.- References.- 5 Detecting the Dimensions of Depression: Behavioral Assessment in Therapy Outcome Research.- Clinical Phenomena.- Assessment Methods.- The Self-Control Model of Depression.- Therapy Program.- Therapy Research.- References.- 6 Consequences of Increasing the Functional Impact of Internal Emotional Stimuli.- Increasing Functional Exposure to Phobic Imagery via Expectancy and Relaxation.- Increasing Functional Exposure to Physiological Responses via Relaxation.- Conclusion.- References.- 7 Cognitive Ethology: Assessing tlĂ*