Which one is true about reliability and validity?
A.
Validity is pertinent only to a particular instrument and it is an ideal state that you as a researcher to achieve.
B.
Construct validity is a less sophisticated technique for establishing the validity of an instrument.
C.
Reliability is the degree of feasibility or precision in the measurement made by a research instrument.
D.
Rationale equivalence method are not belonged to the method of reliability.