![]() Test-retest is a way of testing external reliability. Test-retest Reliability The test should produce the same results when the same participants repeat it. For example, if you took the same IQ test on two different days you should achieve the same store. ![]() External Reliability The test should produce consistent results regardless of when it’s used. For example, if an lQ test contains sections of supposedly equal difficulty, participants should achieve similar scores on all sections. There are different types of reliability Internal External Test-retest Inter-raterĢ Internal Reliability Different parts of the test should give consistent results. A reliable test carried out in the same circumstances on the same participants should always give the same results. Reliability refers to how consistent or dependable a test is. ![]() Presentation on theme: "Reliability Internal External Test-retest Inter-rater"- Presentation transcript:ġ Reliability Internal External Test-retest Inter-rater
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