METHODOLOGICAL PROBLEMS OF THE PSYCHOPHYSICAL METHODS OF LIMITS AND CONSTANT STIMULI.

摘要

The method of limits (ML) and the method of constant stimuli (MCS) can be related on the basis of simple probability considerations. From the probability relationship many deductions may be made. Examples of such deductions indicate, among other things, (a) the characteristics of distributions of thresholds in the ML, (b) the influence of the number of stimulus steps, the number of "Yes" responses required at a step, the number of threshold determinations, etc- , (c) preferred methods for comparisons within the ML. and between the ML and the MCS, (d) incompatibility of present-day assumptions concerning the ML and the MCS.