Motivation and Emotion publishes articles on human motivational and emotional phenomena that make theoretical advances by linking empirical findings to underlying processes. Submissions should focus on key problems in motivation and emotion, and, if using non-human participants, should contribute to theories concerning human behavior.  Articles should be explanatory rather than merely descriptive, providing the data necessary to understand the origins of motivation and emotion, to explicate why, how, and under what conditions motivational and emotional states change, and to document that these processes are important to human functioning.A range of methodological approaches are welcome, with methodological rigor as the key criterion.  Manuscripts that rely exclusively on self-report data are appropriate, but published articles tend to be those that rely on objective measures (e.g., behavioral observations, psychophysiological responses, reaction times, brain activity, and performance or achievement indicators) either singly or combination with self-report data.The journal generally does not publish scale development and validation articles.  However, it is open to articles that focus on the post-validation contribution that a new measure can make.  Scale development and validation work therefore may be submitted if it is used as a necessary prerequisite to follow-up studies that demonstrate the importance of the new scale in making a theoretical advance.