What's A Z-Score And Why Use It In Usability Testing

label Psychology
account_circle Unassigned
schedule 1 Day
account_balance_wallet $5

What is a z score and how and why is it used in testing

Oct 12th, 2015

Thank you for the opportunity to help you with your question!

A Z is a statistical measurement that usually shows the relationship of a score to the mean in a group of scores put together.A Z-score of 0 means the mean and the score are equally the same.A Z-score can also be  negative or positive,this indicates whether it is above or below the mean and by how many standard deviations.besides showing the  a score's relationship to the mean, the Z-score gives indications to statisticians whether a score is typical or atypical for a particular set of data .One application in real -life  of z-scores occurs in usability testing.

it is used to standadize data on one scale so a comparison can take place 

Please let me know if you need any clarification. I'm always happy to answer your questions.
Oct 12th, 2015

Studypool's Notebank makes it easy to buy and sell old notes, study guides, reviews, etc.
Click to visit
The Notebank
...
Oct 12th, 2015
...
Oct 12th, 2015
Jun 28th, 2017
check_circle
Mark as Final Answer
check_circle
Unmark as Final Answer
check_circle
Final Answer

Secure Information

Content will be erased after question is completed.

check_circle
Final Answer