Sttmnzdry.-Several responses to Necker cubes were shown to be influenced by characteristics of the stimulus. This study used a linear components of variance analysis to examine individual differences with respect to these influences Two well-dellneared independent dimensions of individual differences emerged. It was suggesred that one of these may be related to field dependency and another lo the adopdon by Ss of different strategies in their artempts to increase reversal races. Four other components of variance involving measures of perspective dominance emerged, suggesting that other dimensions of individual differences exist. Recently we reported the effects of length of diagonal and orientation of Necker cubes on the race of reversal (Wieland & Mefferd, 1966), on the first perspective seen, and the total time a given perspective was seen (Wieland & Mefferd, 1967). The present paper examines these data and an additional response variable, number of eye blinks, for independent dimensions of individual differences in responses to Necker cubes, using linear components of variance analysis [for a discussion of how this differs from factor analysis, see Overall ( 1962)l. METHOD