Which tool is most valuable in determining if a particular pattern of single-subject results that you collected is meaningful?

Some stroke victims lose the capacity to perceive motion but retain the capacity to perceive shapes and colors. Others lose the capacity to perceive colors but retain the capacity to perceive movement and form. These peculiar visual disabilities best illustrate our normal capacity for_______.

Fill in the blank(s) with the appropriate word(s).

A experiment in which two individuals are placed in separate rooms while one tries to send information and the other tries to receive it without use of any of the senses is using the _____ procedure

a) ESP b) Ganzfeld c) telepathy d) double blind