To assess the effect of the frame on the mean error in the portable rod-and-frame 18 subjects were tested once with frame present and once without it. 11 frame-dependent subjects produced smaller mean error without the frame; 7 frame-independent subjects were not significantly affected by removal of the frame. Nyborg's statistical method of differentiating frame-dependent and frame-independent subjects appears validated.
Get full access to this article
View all access options for this article.
References
1.
CohenW.TepasD.Temporal factors in the perception of verticality. American Journal of Psychology, 1958, 71, 760–763.
2.
HayesR. W.VenablesP. H.An exposure time effect in the Witkin rod-and-frame test. Psychonomic Science, 1972, 28, 243–244.
3.
LongG. H.The rod-and-frame test: Further comments on methodology. Perceptual and Motor Skills, 1973, 36, 624–626.
4.
NyborgH.A method for analysing performance in the rod-and-frame test: I. Scandinavian Journal of Psychology, 1974, 15, 119–123.
5.
StuartI. R.MurgatroydD.Field research model of the rod-and-frame test. Perceptual and Motor Skills, 1971, 32, 671–674.
