Between
Subjects One-Way ANOVA
calculator

Formulas

SSwithin = SStotal - SSamong
dfamong = r-1
dfwithin = N-r
x = individual observation
r = number of groups
N = total number of observations (all groups)
n = number of observations in group

Step 1: Enter Data Into Columns x1, x2, and x3
(You must click on buttons in order for calculator to work correctly)

x1
x12
 x2 x22 x3 x32
Sx1 = Sx12 = Sx2 = Sx22 = Sx3 = Sx32 =
(Sx1)2 = (Sx2)2 = (Sx3)2 =
M1 = M2 = M3 =
   
   
   



SStotal = ( + + ) -
( + + )2
24

= -

SStotal =

SSamong=[
+
+
] -
8
8
8




= -

SSamong =

SSwithin = - =

Source
SS
df
MS
F
Among 2
Within 21  


F signficance/probability table


Psychology World was created by Richard Hall in 1998 and is covered by a creative commons (by-nc) copyright