Equations Flashcards
1
Q
Mean
A
2
Q
Variance
A
3
Q
Standard deviation
A
4
Q
t-test
A
5
Q
Effect size
A
6
Q
Z Score.
The observed difference divided by the expected difference in a single score from a sample or population.
A
7
Q
Reverse z score
to get a sample score from a z-score
A
8
Q
Standard Error of Mean
Indicates the amount the sample mean will deviate from the population mean.
As N gets bigger the SEM gets smaller.
Larger samples estimate the population mean better.
Larger samples = Lower standard error of mean
A
9
Q
The chi-square test is used when dealing with nominal data.
Where O is the observed frequency in each cell, E is the expected frequency in each cell, and the symbol sigma refers to summing over all cells.
A
10
Q
A
