PSYCHOPHYSICAL SCALING METHODS REVEAL AND MEASURE CONTEXT EFFECTS - AUTHORS RESPONSE

People cannot make independent judgements of stimulus attributes and s o ''it is necessary to theorize in terms of stimulus structures'' (Loc khead 1992, p. 551) rather than in terms of stimulus features. The new commentaries here further this statement and also support the observa tions in the target article that psychophysical scaling methods allow us to measure (1) how context determines judgments and (2) what people remember about prior stimuli.