Given below are two statements Statement I: Reliability is a necessary but insufficient condition for the validity aspect of a research tool Statement II: Validity is threatened when a test measures only the construct it is designed to measure in a research In light of the above statements, choose the most appropriate answer from the options given below
Given below are two statements Statement I: Reliability is a necessary but insufficient condition for the validity aspect of a research tool Statement II: Validity is threatened when a test measures only the construct it is designed to measure in a research In light of the above statements, choose the most appropriate answer from the options given below Correct Answer Statement I is correct but Statement II is incorrect
Reliability in research:
- The consistency of a research instrument or the process of measurement
- Reliability is a necessary but insufficient condition for the validity aspect of a research tool
- Stability, equivalence, and consistency are three basic principles of reliability
- It can be classified into two
- Internal consistency: establishing causal relationships as distinguished from the spurious relationship
- External consistency: establish the domain to which findings can be generalized
The validity of research:
- It refers to the accuracy of an instrument or the process of measuring
- A test has construct validity if it accurately measures a theoretical, non-observable construct or trait. The construct validity of a test is worked out over a period of time on the basis of an accumulation of evidence. There are a number of ways to establish construct validity.
- Thus Validity is not threatened when a test measures only the construct it is designed to measure in a research
Therefore, Statement I is correct but Statement II is incorrect
মোঃ আরিফুল ইসলাম
Feb 20, 2025