Busy. Please wait.
Log in with Clever

show password
Forgot Password?

Don't have an account?  Sign up 
Sign up using Clever

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.
Your email address is only used to allow you to reset your password. See 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.
Didn't know it?
click below
Knew it?
click below
Don't know
Remaining cards (0)
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

final-review 34

Levels of Measurement

Nominal This is the weakest level of measurement. Categories are very broad and each participant of the study will fit into only one of the categories. Each category is independent of the other.
Nominal Example: male vs. female, yes vs. no
Ordinal This level of measurement is also known as a ranking scale.
Ordinal Data that is collected will be placed into independent categories, however, the categories have a qualitative relationship regarding the order of ranking.
Ordinal There is not equality between each category.
Ordinal Example: manual muscle testing, levels of assistance
Interval A metric measurement scale where the distance between any two numbers is of equal amounts. In this scale the unit of measure and zero are both arbitrary.
Interval Example: Celsius temperature scale, calendar time
Ratio A metric measurement scale where the unit of measurement is arbitrary, however, there is an absolute zero.
Ratio Example: weight and length scales
Created by: micah10
Popular Physical Therapy sets




Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!
"Know" box contains:
Time elapsed:
restart all cards