“…However, the reviewers note that these initial self-report indices are limited because the scales involved appear to have been chosen arbitrarily without an overarching psychometric model of stress states. To develop a more systematic multidimensional framework for understanding transient states of mood, arousal, and fatigue, Matthews and his associates (Matthews et al, 1999(Matthews et al, , 2002 developed the Dundee Stress State Questionnaire (DSSQ) to assess the manner in which stress is experienced as disturbances in affect, motivation, and cognition. The DSSQ features 10 factor-analytically determined scales which measure energetic arousal, tense arousal, hedonic tone, intrinsic task motivation, selffocused attention, self-esteem, concentration, confidence and control, task-relevant cognitive interference, and task-irrelevant cognitive interference.…”