Busy. Please wait.

show password
Forgot Password?

Don't have an account?  Sign up 

Username is available taken
show password


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.

Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
remaining cards
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
restart all cards

Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how


Check your understanding on data information and knowledge

What is Data? are raw facts and figures. On its own it has no meaning. It may be inputted and stored in a computer.
What is Information? Information is processed data. Information has a context which makes it meaningful. Computers output information.
What is Knowledge? Knowledge is derived from information by applying rules to it i.e. it is what you get when you interpret information.
What is Encoding Data? Encoding means to replace data with short codes
Give an example of Encoding Data? Male/Female encoded as M/F.<br> Blue/Red encoded as B/R
Give 5 advantages of Encoding Data? Less storage space is required - saves memory<br> Faster manual input <br> Less chance of transcription errors<br> Greater consistency of data<br> Comparisons are shorter thus speeding up searches
Give 2 disadvantages of Encoding Data? The precision of the data may be coarsened through value judgments.<br> The user needs a list of valid codes and their meanings to understand the encoding
What is a Value Judgement? A value judgement is a matter of opinion rather than fact.
Give an example of a Value Judgement Example: the following data may be collected on a dating agency form - I am: handsome / good looking / average / ugly.