A Simple Averaging Mode (SAM) of impression formation was developed as an institutional demonstration. One-digit demographic or descriptive traits and an affective reaction are input for each perceived encounter. The model uses a weighted averaging procedure similar to that suggested by Anderson (1965), to combine these trait perceptions into an affective response. Traits are weighted according to (a) the frequency of past experience relative to present encounters, (b) the degree to which experiences observed can be matched to existing traits of the perceived person, and (c) as internal program state or "mood."
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References
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Anderson, N.Averaging versus adding as a stimulus-combination rule in impression formation. Journal of Experimental Psychology, 1965, 70, 394-400.
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