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What is the term used which refers to the consistency of scores obtained by the same individuals when re-examined with the same test on different occasions or with different sets of equivalent items or under other variable examining conditions?

What is the term used which refers to the consistency of scores obtained by the same individuals when re-examined with the same test on different occasions or with different sets of equivalent items or under other variable examining conditions? Correct Answer Reliability

Reliability:

  • One of the most important criteria for the quality of measurement is the reliability of the measuring instrument.
  • Reliability means consistency with which an instrument yields similar results.
  • It concerns the extent to which a measurement of a phenomenon provides stable and accurate results. Reliability is concerned with consistency and replicability or with repeatability over time.
  • A test is seen as being reliable when it can be used by a number of different researchers under stable conditions, with consistent results and the results not varying. It is important to remember that reliability is not measured, it is estimated.
  • For instance, if a test is constructed to measure a particular trait such as neuroticism, then each time it is administered, it should yield the same results.

Objectivity

  • Objectivity is also referred to as rater reliability.
  • Objectivity is an important characteristic of a good test. It affects both the validity and reliability of test scores. 
  • The objectivity of a measuring instrument means the degree to which different persons scoring the answer receipt arrives at the same result.
  • It is the extent to which the instrument is free from personal error (personal bias), which is subjectivity on the part of the scorer.

Validity 

  • A measuring instrument possesses validity when it actually measures what it claims to measure. For example, if a test is designed to measure aptitude, then it must measure aptitude and not personality, intelligence, or any other traits.
  • Validity generally refers to how accurately a conclusion, measurement, or concept corresponds to what is being tested.
  • It is defined as the extent to which an assessment accurately measures what it is intended to measure.

Endurability

  • The test can be used for a long time. It can be sustained for other purposes.

Related Questions

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Test reliability is
1. ability of the test to measure the variable under study.
2. consistency of scores obtained by the same person when retested with the same test.
3. ability of the test to measure large number of variables.
Select the correct answer:
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