Lecture 2

Question 1

How does a nominal measure work?

Answer 1

Yes or No (or Able/Unable) answers

Question 2

How does an Ordinal measure work?

Answer 2

You rank your response amongst multiple options

Example: 1- very difficult

2- Moderately difficulty

3- Little difficulty

4- No difficulty

Question 3

How does a ratio response work?

Answer 3

It is a number, which can be 0

“how many times a week do you go shopping”

Question 4

How does an interval response measure work?

Answer 4

It is a number that cannot be 0

Example: 11in of ankle circumference

Question 5

What is inter-rater reliability?

Answer 5

Consistency when comparing multiple raters

Question 6

What is intra-rater reliability

Answer 6

Consistency when comparing the same rater’s scores

Question 7

What produces a more reliable answer?

Yes or No

OR

Yes, some difficulty
Yes, no difficulty
No

Answer 7

Just Yes and No

Note: other scale is more sensitive to change

Question 8

What is face validity?

Answer 8

Does the instrument measure what it’s suppose to

Question 9

What is content validity?

Answer 9

Does the tool cover the entire subject it’s trying to measure?