# Validity And Reliability Assignment

Want create site? With you can do it easy.

# Validity And Reliability Assignment

Validity And Reliability Assignment

Don't use plagiarized sources. Get Your Custom Essay on
Validity And Reliability Assignment
From \$8/Page

Validity And Reliability Worksheet Assignment

A reliable instrument is one that is consistent in what it measures. If, for example, an individual scores highly on the first administration of a test and if the test is reliable, he or she should score highly on a second administration.

Imagine that you are conducting a study for which you must develop a test in mathematics for 7th-grade students. You develop a 30-point test and distribute it to a class of 12, 7th-grade students. You then administer the test again one month later to the day. The scores of the students on the two administrations of the test are listed below. Use Microsoft® Excel® or IBM® SPSS® to create a scatterplot with the provided scores, formatted as shown in the example graph. What observations can you make about the reliability of this test? Explain

Reliability is consistency across time (test-retestreliability), across items (internal consistency), and across researchers (interrater reliability). Validity is the extent to which the scores actually represent the variable they are intended to. … The assessment ofreliability and validity is an ongoing process.

Validity implies the extent to which the research instrument measures, what it is intended to measure. Reliability refers to the degree to which scale produces consistent results, when repeated measurements are made. A reliable instrument need not be a valid instrument.

Outside of statistical researchreliability and validity are used interchangeably. Forresearch and testing, there are subtle differences. Reliability implies consistency: if you take the ACT five times, you should get roughly the same results every time. A test is valid if it measures what it’s supposed to.

## Reliability Vs Validity

### Interrater

The degree of agreement between different people who experience or analyze the same object is calculated. Many scientists make the same test or analysis on the same specimen to assess the interrater reliability. Then you calculate the correlation between the results of their different sets. The high interrater Reliability on a test is based on the rating of the researchers.

#### Test-retest Reliability

The accuracy of the tests is calculated by repeating the same experiment on the same sample at a different time point. You use it when you calculate something in your test that you expect to remain constant.

Did you find apk for android? You can find new and apps.

Full satisfaction or return your money back

Our experts will write you a top-quality paper and revise it an unlimited number of times until you're 100% satisfied - or offer a refund.

Check Prices
Pages (550 words)
\$0.00
*Price with a welcome 15% discount applied.
Pro tip: If you want to save more money and pay the lowest price, you need to set a more extended deadline.
We know that being a student these days is hard. Because of this, our prices are some of the lowest on the market.

Instead, we offer perks, discounts, and free services to enhance your experience.
Sign up, place your order, and leave the rest to our professional paper writers in less than 2 minutes.
step 1
Fill out the order form and provide paper details. You can even attach screenshots or add additional instructions later. If something is not clear or missing, the writer will contact you for clarification.
How to get the most out of your experience with Toptutor4me
One writer throughout the entire course
If you like the writer, you can hire them again. Just copy & paste their ID on the order form ("Preferred Writer's ID" field). This way, your vocabulary will be uniform, and the writer will be aware of your needs.
The same paper from different writers
You can order essay or any other work from two different writers to choose the best one or give another version to a friend. This can be done through the add-on "Same paper from another writer."
Copy of sources used by the writer
Our college essay writers work with ScienceDirect and other databases. They can send you articles or materials used in PDF or through screenshots. Just tick the "Copy of sources" field on the order form.
Here is what our happy clients say about us.
Receiving customer feedback and reviews from legit students who have utilized our services is one of our favorite part of the job. We love seeing testimonials from happy students whom we have helped to succeed. Read through the below review page to see what our partners think.
Microbiology
Perfect! Thank you guys for all of your great help! :)
Customer 452483, August 23rd, 2021
Mathematics
Thank you, great work!
Customer 452483, July 19th, 2021
Communications
Customer 452483, July 5th, 2021
Psychology
Thank you for all of your help and hard work, truly appreciate you guys always being there with my hectic schedule. Thank you again!
Customer 452483, September 20th, 2021
Psychology
On point! Appreciate all the hard work!!
Customer 452483, August 16th, 2021
Other
I appreciate the help.
Customer 452567, March 18th, 2022
Education
Great good
Customer 452555, February 14th, 2022
Education
Customer 452555, February 16th, 2022
Mathematics
Job WELL DONE! Thank You very much!!
Customer 452483, July 12th, 2021
English 101
I would like to thank you for the writing, it was a very busy week for me and had no time this week to do a writing. I would recommend you to others and would utilize you again.
Customer 452639, October 16th, 2022
Healthcare Writing & Communications
Perfect! Thank you so much for all of your help!
Customer 452483, October 31st, 2021
Nursing
Excellent! Thank you.
Customer 452487, October 16th, 2021
11,595
Total Reviews
98%
Satsfaction rate
6 pages
Average paper length
40%
Customers referred by a friend
Enjoy the best prices and lifetime 15% discount
Use a coupon TOP15 and enjoy expert help with any task at the most affordable price.
Order Now Order in Chat