This graph shows your results from the brightness illusion. The first four bars are the results of your trials and the last bar is your average. The results are the intensity of the lower right circle as a percentage of the center top circle. If the illusion did not affect your perception, then your results show up as 100%.

Your results are {{ctrl.resultsData.deviation}}% {{ctrl.resultsData.text1}} than the correct intensity. So your results show {{ctrl.resultsData.text2}} impact of the illusion. Most people make the lower right blue circle darker than the center top blue circle.