The American Journal of Psychology, Vol. 98, No. 1 (Spring, 1985), pp. 85-100 (16 pages) Visual similarity, stimulus probability, and stimulus contrast were manipulated in two memory-scanning ...

Fifth-graders at Moreland Hills Elementary School recently held a Probability Carnival featuring games of chance they created. Students would assess theoretical versus experimental probability, and ...

Despite investigations for over 70 years, the absolute limits of human vision have remained unclear. Rod cells respond to individual photons, yet whether a single-photon incident on the eye can be ...

An animated guide to probability explains how to express probability as fractions and percentages based on the ratio of the number of ways an outcome can happen and the total number of outcomes.