JOINT MODEL-PARAMETER VALIDATION OF SELF-ESTIMATES OF VALENCE AND AROUSAL: PROBING A DIFFERENTIAL-WEIGHTING MODEL OF AFFECTIVE INTENSITY.
Based on a hypothesised differential weighting model of integration of valence and arousal into overall affect intensity, self-estimates of valence and arousal where inputted to the model and derived predictions of intensity compared to observed judged intensity. Given that separable factorial manipulation of valence and arousal was hampered by the stimuli used (affective pictures from IAPS), self-estimation was mandatory and no functional parameters could be independently established as independent criteria. Two estimation methods were employed: absolute weight/value estimation and part-worth estimation. Moderate adjustment of the model predictions offered partial support to both the assumed averaging rule and the self-estimates employed. As for self-estimation methods, part-worth and direct separate judgments of value and importance seem to have behaved at an equivalent level.