Test validity and reliability definition

Test-retest is the commonly used approach and involves administering a similar test to the same group of individuals at different times.

The reliability of data collected is measured using three approaches, namely test-retest, alternate form method and split-half (Milton, Bull & Bauman, 2011).

In the context of tests and assessments, concept of quality encompasses the ability of data used to be accurate even when the test is conducted at a different time or given to a different individual from the same sample population. The reason for this is that assessment relies on the quality of data collected. Reliability influences on the consistency of test results very much. Reliability refers to the ability of the quality of data used in tests and assessments to remain stable and dependable throughout (Long & Johnson, 2000). Meaning of reliability in testing and assessment It is important to ensure that the methodologies used to conduct tests and assessments focus on measuring the intended element in a qualitative manner. Some of the most commonly used concepts in tests and assessments are validity and reliability (Cohen et al., 2013). The results should be effective and dependable.

Due to their objective nature, tests and assessments ought to have quality results. They involve a highly standardized process that examines an individualвЂ™s sensual ability and mental processes (Cohen, Swerdlik & Sturman, 2013). Tests and assessments are very important in helping people with learning and understanding human behavior.

Test validity and reliability definition