The major disadvantage of the coefficient of stability and equivalence as a measure of reliability ...

The major disadvantage of the coefficient of stability and equivalence as a measure of reliability is
 
  a. getting the cooperation of the subjects.
  b. obtaining the two forms of the test.
  c. finding a suitable criterion.
  d. establishing the appropriate time interval.
  e. the statistics involved in calculating the coefficient.

Ques. 2

A personality test has been carefully prepared to measure a single trait. Which of the following coefficients would probably be lowest in size?
 
  a. Kuder-Richardson c. Coefficient of stability
  b. Split-half coefficient d. Coefficient of stability and equivalence