respond to this by 1000pm 150 words

According to Cohen and Swerdlik (2018), Reliability means to be consistent. In psychometric terms, the meaning of reliability is based on when something is said to be consistent. The book defines “a reliability coefficient is an index of reliability, a proportion that indicates the ratio between the true score variance on a test and the total variance” (Cohen & Swerdlik, 2018, p. 141). Moreover, in testing and assessment there exist three sources of error variance such as test construction, test administration, and test scoring and interpretation. The text state that a measurement error is everything that is associated with the process of the variable being measured instead of the variable being measured (Cohen & Swerdlik, 2018).

Internal consistency reliability coefficient = .92

According to Cohen and Swerdlik (2018), states that internal consistency reliability is when a one can obtain an estimation of a test being reliable without creating a different form of the test nor administering the same test twice to the same individual (Cohen & Swerdlik, 2018). Furthermore, a test that has an Internal consistency reliability coefficient = .92 means that the item on the test must relate to one another and it also means that there exists a strong relationship between the content of the test. As I mentioned at the beginning of the post reliability means to be consistent. The higher the coefficient, the more reliable the test is. A .92 means that the test has excellent reliability and it is acceptable.

Alternate forms reliability coefficient = .82

According to Cohen and Swerdlik (2018), states that alternate forms are different types of test that are built to be parallel. Hence, the reliability of the alternate forms refers to “an estimate of the extent to which these different forms of the same test have been affected by item sampling error, or other error” (Cohen & Swerdlik, 2018, p. 149). An example we can use is when a person is given two different versions of the same test at a different time.

Test-retest reliability coefficient = .50

According to Cohen and Swerdlick (2018), A test-retest reliability is when a test is administered twice at two different points of time. Moreover, one we have to evaluate the reliability of a test-retest that purport to measure is fairly stable over time (Cohen & Swerdlik, 2018).

The higher the coefficient, the more reliable the test is. .92 means that the test has excellent reliability and it is acceptable the higher, the greater. An Alternate forms reliability coefficient = .82 is still high reliability, and it is also acceptable. A test-retest is a correlation of the same test over two administrator which relates to stability that involves scores. The book states that the more extended time has, the higher the chances that the reliability coefficient will be lower. Therefore, the passage of time may be an error of variance (Cohen & Swerdlik, 2018). Thus, depending on what the individual has been through some traumatic event it may also create an error variance which will impact their score variance and which will change, and the reliability will be lower than if that individual did not have any traumatic event. Therefore, if it is below .50 is not considered to be a reliable test nor acceptable. The book also states that “If we are to come to proper conclusions about the reliability of the measuring instrument, evaluation of a test-retest reliability estimate must extend to a consideration of possible intervening factors between test administrations” (Cohen & Swerdlik, 2018, p. 146).

Reference

Cohen, R. J., Swerdlik, M. (2018). Psychological Testing and Assessment. [Capella]. Retrieved from https://capella.vitalsource.com/#/books/1260303195/

Pages (550 words)
Approximate price: -

Quality Research Papers

We always make sure that our academic writers follow all your instructions precisely. You can choose your academic level and we will assign a writer who has a respective degree.

We have a team of professional writers with experience in academic and business writing. Many are native speakers and able to perform any task for which you need help.

Unlimited Revisions

If you think we missed something, send your order for a free revision. You have 10 days to submit the order for review after you have received the final document.

On time Delivery

All papers are always delivered on time. In case we need more time to master your paper, we may contact you regarding the deadline extension. Otherwise a 100% refund is guaranteed.

Original & Confidential

We use several writing tools checks to ensure that all documents you receive are free from plagiarism. We also promise maximum confidentiality in all of our services.

Our support agents are available 24 hours a day 7 days a week and committed to providing you with the best customer experience. Get in touch whenever you need any assistance.

Try it now!

Calculate the price of your order

Total price:
\$0.00

How it works?

Fill in the order form and provide all details of your assignment.

Proceed with the payment

Choose the payment system that suits you most.

Whether you have an urgent deadline or those that have time. You can take some time and relax after trusting us with your paper. We make sure that we conduct the academic writing services diligently.

Essay Writing Service

Among the wide variety of academic work, essay writing is one of the simplest a student can ever come across. Usually, it is a task which students encounter and learn how to write whilst in high school. However, the case is quite different when it comes to university and college.

Term Paper Writing

Are you looking for an online writing firm that can offer you reliable custom term paper writing help? Is your wish and desire to get someone who can guide you throughout the process of writing term papers? If yes, then you have come to the right place.

Coursework Writing Help

Coursework is essential for every student in order to graduate from college. However, most of it is deadline-centric, and that becomes a challenge to most learners. With the amount of work, learners are receiving every day, finding time to work on every task is not easy.

Online Homework Help

Online homework help services are an answer to every challenge that students go through. Despite the difference in the needs and levels of learning, all students can benefit from these services. Acemyhomework is one of the best online homework help service companies you can find on the internet.