A method that measures what it claims to measure is [ ]; a method that prevents unnecessary harm is [ ].
A
A method that measures what it claims to measure is valid; a method that prevents unnecessary harm is reliable.
B
A method that measures what it claims to measure is reliable; a method that prevents unnecessary harm is ethical.
C
A method that measures what it claims to measure is valid; a method that prevents unnecessary harm is ethical.
D
A method that measures what it claims to measure is objective; a method that prevents unnecessary harm is practical.