Which of these is not an operational definition of anxiety?
a. Heart rate
b. Degree of nervousness on a math test
c. Participants' ratings of their own anxiety on a 1 to 5 scale
d. Scientist's rating of participants' anxiety on a 1 to 5 scale
Question 2
Which of the following could not be an operational definition of intelligence?
a. Score on an IQ test
b. Number of rare words read per minute
c. GPA
d. How smart you are on several tests