Percentiles ranks

Question 1

What does norm referenced evaluation provide

What does it require

Answer 1

A comparison of your performance against some group

Group can be local, state, regional, national, international

Requires large sample size in order to uncover a variety of percentile ranks

Question 2

What are norms

Give a chance for

Changed every…

Answer 2

Predetermined performance standards

Norms give everyone a chance to be excellent

Norms should be changed every 3 years

Question 3

What are class rank norms

Is this data meaningful

Example

Answer 3

Class rank norms rank individuals with regard to his or her class or group

No

1st place
2nd place
3.5 place
3.5 place
5th place

Question 4

Regardless of the distribution of scores _______ is always the central measure because it defines

Answer 4

The median

50% of the scores

Question 5

Percentile ranks describe

Answer 5

The percent of the group that either fall below or above the score

e.g score of 80 on midterm = 20th percentile rank
Therefore 20% of students fall below or equal to 80 on midterm

Question 6

What standard do percentile rank norms represent

Answer 6

Norm referenced standards

Question 7

What were percentile norms used for setting

Answer 7

Performance standards in fitness tests

Question 8

What do percentile rank scores tend to do

Why

Answer 8

Inflate the differences in the middle

Deflate the differences in the extremes

This is due to density of scores in the middle vs scarcity of scores in the extremes

Question 9

Percentile rank scores are what type of measure

Therefore do not have…

Answer 9

Ordinal measures

A common unit of measurement