A partial solution is suggested to the problem of determining whether high positive correlations between sets of scale values for different attributes of a set of stimuli represent the actual situation or a failure on the part of independent panels of judges to rate the attributes differentially.
References
1.
EdwardsA.Techniques of attitude scale construction. New York: Appleton-Century-Crofts, 1957.
2.
StevensS.The direct estimation of sensory magnitudes—loudness. Amer. J., Psychol., 1956, 69, 1–25.
3.
WinerB.Statistical principles in experimental design. New York: McGraw-Hill, 1962.