statistical tests Flashcards
1
Q
what is the pneumonic we use to choose a test
A
silly witches rarely cast magic under crappy magic potions
2
Q
what is nominal data
A
data represented in categories
3
Q
what is ordinal data
A
data that is ordered in some type of way
4
Q
what is interval data
A
data that can be measured in numerical scales
5
Q
what is related data
A
repeated measures and matched pairs
6
Q
what is unrelated data
A
independant measures
7
Q
what are the degreees of freedom in the unrelated t test
A
n1+n2-2
8
Q
what is a type 1 error
A
rejecting the null hypothesis when its true
9
Q
what is a type 2 error
A
accepts null hypothesis when its not true
