The MSF is an ultra-brief three-item measure of global mood state developed for survey research where brevity is paramount and mood is a control variable rather than a primary construct. Peterson and Sauber (1983) argued that mood at the time of survey completion can systematically bias responses on satisfaction, quality, and other evaluative measures, and that a brief but reliable mood measure should be routinely included as a covariate. The MSF operationalises mood as a unidimensional pleasant-unpleasant dimension using three globally worded bipolar questions. Despite its brevity, the MSF demonstrates acceptable internal consistency and has been shown to relate to response biases in consumer satisfaction measures.
4-point bipolar scale (1=very unpleasant/bad/negative to 4=very pleasant/good/positive); items averaged; higher scores = more positive mood
Full scale items shown. Always cite the original source when using this scale in research.
The MSF is designed for survey contexts where brevity is essential; measures global pleasant-unpleasant valence only, not arousal. Use BMIS or PANAS when arousal information is required or when mood is a primary dependent variable. Should always be included as a covariate in consumer satisfaction surveys. The four-point scale avoids a midpoint; all three items tap the same global valence dimension and are averaged.
Peterson, R.A., & Sauber, M. (1983). A mood scale for survey research. In P.E. Murphy et al. (Eds.), AMA Educators' Proceedings (pp. 409–414). American Marketing Association.
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