The Dead Grandmother/Exam Syndrome(docs.google.com)

https://docs.google.com/viewer?a=v&q=cache:D7SV9vyGVzgJ:www.math.toronto.edu/mpugh/DeadGrandmother.pdf+grandmother+effect+finals&hl=en&gl=us&pid=bl&srcid=ADGEESjbt1yExnh7eyYYkDCOFGxOCH-oomPcYXphz8tUiGwiQ3_igcADAqo9AiLylZ1tPx1wFGD7Sk3IhZNSKWVbw-XwMzgwwcL6n7SXjIxbVcPpJV5w2eBhLU5ZTtXXOf8a9fUgR5e0&sig=AHIEtbRJ9fAPtAQdCuPbXnUgdJ_Tt8N6dQ