BoxG. E. P.Some theorems on quadratic forms applied in the study of analysis of variance problems. II. Effects of inequality of variance and correlation between errors in a two way classification. Ann. Math. Stat., 1954, 25, 484–498.
CronbachL. J. & GleserG. C.William Stephenson, The study of behavior: Q-technique and its methodology: A review. Psychometrika, 1954, 19, 327–330.
4.
EngelM.The stability of the self concept in adolescence. J. abnorm. soc. Psychol., 1959, 58, 211–215.
5.
FellesW.An introduction to probability theory and its application.Vol. I. New York: Wiley, 1950.
6.
GaitoJ.Non-parametric methods in psychological research. Psychol. Rep., 1958, 5, 115–125.
7.
GaitoJ.Repeated measurements designs and counterbalancing. Psychol. Bull., 1961, 58, 46–54.
8.
GeisserS., & GreenhouseS. W.An extension of Box's results on the use of the F distribution in multivariate analysis. Ann. Math. Stat., 1958, 29, 885–891.
9.
KoganW. S.QuinnR.AxA. F., & RipleyH. S.Some methodological problems in the quantification of clinical assessment by Q array. J. consult. Psychol., 1957, 21, 57–62.
10.
NahinskyI. D.The relationship between the self concept and the ideal-self concept as a measure of adjustment. J. clin. Psychol., 1958, 14, 360–364.
11.
StephensonW.The study of behavior.Chicago: University Press, 1953.
12.
TurnerR. H., & VanderlippeR. H.Self-ideal congruences as an index of adjustment. J. abnorm. soc. Psychol., 1959, 58, 211–215.
13.
WittenbornJ. R.Contributions and current status of Q methodology. Psychol. Bull., 1961, 58, 132–142.