Which type of acuity is measured by pressing a grooved stimulus onto the skin and asking the person to indicate the orientation?
A) grating
B) letter
C) two-point
D) Braille simulated
Question 2
If the correlation between variables x and y is r = .50, then the coefficient of determination is
a. .25.
b. 0.
c. 1.00.
d. .50.