8.one way between measured of anova

Question 1

ANOVA

Answer 1

analysis of varience

Question 2

what does it do

Answer 2

compare two groups but keep overall 5 percent ( type 1 error)

Question 3

when one way

Answer 3

one IV and DV
3 or more levels.

Question 4

different to repeated one way anova

Answer 4

between

Question 5

One way between group ANOVA ( variables are)

Answer 5

Catigorical IV
Continuous DV

Question 6

between ANOVA must be

Answer 6

normal distributed- scores on DV for each level of IV.
(KS or SW)
greater 0.05 is good on these tests

homogeneity of varience
- assses levenes
p value greater is good as no sig vairnece across data-HOMOGENITY ASSUMPTIONS ARE MET

Question 7

signal to noise ratio

Answer 7

signal ( varience between goups)/ noise ( mean between groups)

Question 8

larger the f

Answer 8

variation between sample means relative to the variation within the samples. T
he higher the F-value, the lower the corresponding p-value.-sig

Question 9

f ratio

Answer 9

total model and residual

Question 10

whats total sum of squares(varience_)

Answer 10

total varience between data point individual and mean
sst= E(data - grand mean)2

Question 11

model sum of square( similar steps to signal)

Answer 11

difference between groups mean and grand mean
SSm=Enk( mean- grand mean)2

Question 12

residual sum

Answer 12

sum of squared difference between individual data points in group and group mean
ssr= E( data- mean)2

Question 13

f fromula

Answer 13

(mean1-mean2)/sd1+sd2= F

Question 14

to compute df

Answer 14

SSM= n-1
SSr=n data - n group

Question 15

why use pairwise comparison

Answer 15

confirm which group sig different from others
(anova says sig different but not confirm which group)

Question 16

post hoc

Answer 16

IF SIG–compares groups
uses turkerys HSD bonferroni