The effect of post event information embedded in the phrasing of the question may produce a response bias independent of memory alteration. This simpler explanation is tenable as the result of a study reported by Harris (1973). Harris obtained response to question that varies according to whether "marked" or "unmarked" modifier was employed. An unmarked modifier implies that in a property such as height or lenght possesses on indefinite upper limit. The marked modifier carries no such implication. Harris asked subjects to give numerical response to a set of 32 question employing 16 pairs of marked and unmarked adjective and adverbs. For example, subjects were asked,"How light was the set of weights?" (marked). For 14 of the 16 modifier pairs, the subjects' mean numerical estimates were in the predicted direction. these were hypothetical question, however; no concrete stimuli were involved, and therefor, there was no possibility that memory was involved.