The stability of shape matching was determined by repeated testing of college students at 5-wk. intervals and by comparing schizophrenics receiving electroconvulsive shock therapy with a matched group not receiving shock. The data indicate that the obtained matched-shape values are not influenced by any of the variables utilized in these studies.
LeibowitzH.BourneL. E.Jr.Time and intensity as determiners of perceived shape. Journal of Experimental Psychology, 1956, 51, 227–281.
3.
LeibowitzH.WaskowI.LoefflerN.GlasserF.Intelligence level as a variable in the perception of shape. Quarterly Journal of Experimental Psychology, 1959, 11, 108–113.
