VaccN. A.BurtM.Assessment of cognitive complexity with emotionally handicapped children. Behavioral Disorders, 1980, 5, 180–185.
2.
VaccN. A.GreenleafW.Sequential development of cognitive complexity. Perceptual and Motor Skills, 1975, 41, 319–322.
3.
VaccN. A.VaccN. F.An adaptation for children of the Modified Role Repertory Test—a measure of cognitive complexity. Psychological Reports, 1973, 33, 771–776.