ABSTRACT
Attempts to measure psychological magnitudes have a long history . In fact, as the preceding quote intimates , psychological magnitudes provided the impetus for much , if not all, of physical measurement , which has now reached a state of precision and depth that mocks the continuing efforts of psychophysicists to grasp the gold ring from the merry-go-round of psychophysical scaling. In this chapter I summarize some salient aspects of our struggle and then make two proposals that represent departures from current practice in the direction of what I see as the establishment of a useful procedure to measure psychological magnitude . I propose that we attempt to measure a "universal" psychological magnitude associatively , as temperature is measured . However , before getting to the proposals, some foundational issues deserve comment.
