Standardised Scirss Flashcards
1
Q
When do you use standardised scores
A
When you want to compare how far above or below average individual values are
2
Q
Standardised score formula
A
Standardised score = value - mean / standard deviation
3
Q
What are the mean and the standard deviation of in this equation
A
The whole population
4
Q
What will a value equal to the means standardised score be
A
0
5
Q
What does a standardised score above 0 mean
A
The score was higher than average
6
Q
What does a standardised score below 0 mean
A
The score was below average
7
Q
Why are standardised scores useful
A
They take in account the performance of the rest of the population so you can make more reliable comparisons
Easier to compare
