Reliability of an IQ Test for adults: IQ tests are specially designed and done on people to analyze general intelligence. These tests are standardized assessments used to evaluate reasoning skills and...

Reliability of an IQ Test for adults:

IQ tests are specially designed and done on people to analyze general intelligence. These tests are standardized assessments used to evaluate reasoning skills and other cognitive abilities of an individual. There are various tests done to administer the IQ levels of an individual, namely the Wechsler series of IQ tests, the Kaufman Brief Intelligence Test, the Stanford-Binet Intelligence Test, and the Comprehensive Test of Nonverbal Intelligence. The most crucial factor that separates these tests is the reliability and their score interpretation with minimal errors.

Why is the WAIS Test considered a reliable test?

The WAIS test is one of the most well designed and the most reliable ones to test adults of 16 years and above and takes about an hour to seventy-five minutes to complete the test. This test focuses on two things like the verbal and the performance aspects. This test is considered to be most reliable as the difference between the observed score and the correct score is minimum. At the time, repeated trials are done to average out the experimental score to get the correct score. This tells us about the quality of the test scores also, and hence proper evaluation can be done with the data about an individual who is put to the test. The reliability of the observed test scores in this test gives us an idea about an individual's cognitive abilities to make the correct assessment. (Originstutoring,2017).

Measurement and Reliability Co-efficient:

The Test-retest technique is used in the WAIS test to determine the reliability coefficient. This indicates the number of repeats done in the test with time so that it becomes the closest average to the total score of an individual. This estimate also reflects the stability of the characteristic or construct being measured by the test. In theoretical terms, the reliability shows us the proportion in the correct score variance within a test's actual conflict. A measure is considered highly reliable if it produces similar test scores for an individual under the same conditions.

Reliability of the test:

Reliability is a critical determinant because we can have confidence in the obtained test scores for an individual based on the same. Reliability also tells us how consistent a test result is actually. That is also needed, or else the deviation will give a wrong analysis of a person's IQ scores and tests. It is also essential to analyze a score's precision as it provides the true reflection of the individuals who undergo these tests. The individual's necessary reasoning skills and cognitive abilities are assessed and analyzed to determine the IQ score. (Yourarticlelibrary,2020)

References:

Article:Cristina Tihoi,2017: “Top 10 reliable IQ tests” retrieved from

http://www.originstutoring.com/2017/blog/reliable-iq-tests

1. Website:

IQtestprep.com,2020: "Wechsler Adult Intelligence Scale (WAIS)" retrieved from

https://iqtestprep.com/wechsler-adult-intelligence-scale/

1. Article:

Disha M, 2020: "Determining the reliability of a test" retrieved from

https://www.yourarticlelibrary.com/statistics-2/determining-reliability-of-a-test-4-methods/92574

Miranda Jennings

Thanks for your post! Are there any reliability concerns that you might have for these tests?