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IGNORE ME TOO, Step 1:, <--, <--, Step 2:, Step 3:, <--, Step 4:,…
IGNORE ME TOO
check for assumptions via descriptives
Assumptions (3)
1.Normality
Shapiro-Wilk test
go to the raw data on jasp
ensure the participants are nominal
Deselect 1 IV
with the isolated 1/2 IV go and look at the shapiro test outcome
check the outliers for this 1/2 IV
copy and paste these descriptives
Now do back to the raw jasp data and choose the 2nd IV, the table will automatically change
2. Outliers
turn on box plots
do this for 1/2 IV
repeat for the 2nd IV
IF there is an outlier, consider removing it on jasp + report this
3. homogenity of variance
go back to descriptives and make sure ALL the IV's are ticked
conduct a Levene test you want
p>.05
if it is not significant report that the assumption of homogeneity of variance was violated
Click
ANOVA
go to 'display'
click
'estimates of the effect size'
(partial n2)
click on
'descriptive plots'
Put the variable with more conditions on the
'horizontal axis'
the other variable should be the
'seperate line'
Turn on
'display error bars'
NOW insepct for an interaction
Check for main effects in IV's
Look at the ANOVA table
Is your main effect for IV 1 significant (
p<.05)
YES
how many conditions are in the IV
2
use the mean values for each of your conditions
1 more item...
3+ conditions :(
what is your hypothesis
2 more items...
NO
you do not need interpret any directional effects
Is your main effect for IV2 significant
(p<.05)
NO
you do not need to interpret any directional effects
YES
How many conditions are in IV2
2
use the mean values for each of your conditions
1 more item...
3+ conditions ;(
what is your hypothesis
2 more items...
Breaking down the interaction
is the interaction significant
YES
there are 3 approaches
Simple effects if its 3*2 or more
go to
'simple effects'
1 more item...
NO
No further breakdown is required
IF it is 2*2 we can use separate 3 separate t-tests
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