![]() ![]() We’d probably question the reliability of the assessment. ![]() If you took the test again and you scored 70 the second time then that would indicate that the test is not reliable, assuming that you hadn’t had some sort of traumatic brain injury that would explain this large drop in your IQ. So if you take an IQ test and you score 130 and then six months later you retake the same IQ test you should score 130 again. So what does reliability refer to? This is the idea that if we measure the same object, or in the case of an IQ test, the same person, and we use the same measure or the same assessment then we should get the same result. But we also want to determine whether or not a test is reliable. In the previous video I talked about different types of validity for assessing an assessment, so how do we determine whether or not an assessment is valid. Hi, I’m Michael Corayer and this a Psych Exam Review. In this video I explain the difference between validity and reliability and then describe several ways of assessing reliability including split-half reliability, test-retest reliability, equivalent-form reliability, and the related concept of standardization.ĭon’t forget to subscribe to the channel to see future videos! Have questions or topics you’d like to see covered in a future video? Let me know by commenting or sending me an email!Ĭheck out my book, Master Introductory Psychology, an alternative to a traditional textbook: ![]()
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