1. STANDARD
SCORES
Types of Standard Scores

2. STANDARD SCORES
It tells the number os SD on
certain score is above or
below the mean.
It gives good
approximation of the rank
in the class.

3. TYPES OF STANDARD
SCORES
Z- Score
- it is the deviation from the mean
divided by the SD .
Z=

4. TYPES OF STANDARD SCORES
T-Score
- It is a standard score with a
mean of 50 and SD of 10.
-T = 50 + 10z

5. TYPES OF STANDARD SCORES
 G-Scores
- it is a standard score which has a
mean of 500 and an SD of 100.
G = 500 + 100z