paired sample t-test Flashcards
1
Q
paired sample t test ( dependent) use which subject
A
within
2
Q
issues with test
A
order effect( bored)
- practice effect( imporve perfromance)
fatigue( decrease perfromance)
to reduce ( rearrange series- counterbalance)
3
Q
positive
A
higher power( less type 2 error)
4
Q
does it test for homogenity
A
no
5
Q
t paired t- test formula
A
T= d (sig) / sd/ root n ( noise)
less as all groups are PAIRED
6
Q
Difference between indepndent t test
A
- paired
7
Q
paired t test
A
- more powerful
- test compare mean and SD of two RELATED groups to determine sig
8
Q
unpaired t test
A
- compare mean between two INDEPENDENT groups
- assume homogenity varience equal within groups
9
Q
t test critalcal value
A
reject null if p smaller 0.05
