The effects of passive viewing and the practice of the control instructions, "slow rate" and "rapid rate," on a measure of binocular rivalry (BR) control was investigated. Four groups of 8 Ss each had different amounts of passive viewing of BR followed by different amounts of control instructions to complete a total of 50 min of testing spaced over lOdays. There were increases of passive rate as long as Ss practiced only the "passive rate" instructions. This had an effect of increasing the rapid rate and slow rate of the first control practice day. However, "passive rate" practice had no significant effect on the measure of BR control. Successive practice days of "rapid rate" and "slowrate" instructions produced an increase in rapid rate and decrease in slow rate resulting in an increase in the measure of control.