Hi Dr.Zalesky,

Thank you for your efforts in creating this wonderful tool. It's efficient and intuitive, hoever, I'm not sure my design matrix and contrast are correct.  We are now performing ANOVA with using NBS tools for 2 factors (3 for group conditions and  2 for gender). Assume that there were 4 patient (2 male and 2 female) for each conditions group, namely 12 patients in total. the example of design matrix and contrast are attached and as follow: 

  I wonder if the above design matrix and contrast are correct?

Hi Yijie, 

the design matrix and contrasts appear to be correct. 

However, a sample size of 10 would most likely be too small to test this relatively complex design. Perhaps 10 was used to provide an example only. 

Andrew

Originally posted by Yijie Zeng:

Hi Dr.Zalesky,

Thank you for your efforts in creating this wonderful tool. It's efficient and intuitive, hoever, I'm not sure my design matrix and contrast are correct.  We are now performing ANOVA with using NBS tools for 2 factors (3 for group conditions and  2 for gender). Assume that there were 4 patient (2 male and 2 female) for each conditions group, namely 12 patients in total. the example of design matrix and contrast are attached and as follow: 

subject	group		main effect for conditions		main effect for gender	interaction effect
1	condition1_male	1	1	0	1	1	0
2	condition1_male	1	1	0	1	1	0
3	condition1_female	1	1	0	-1	-1	0
4	condition1_female	1	1	0	-1	-1	0
5	condition2_male	1	0	1	1	0	1
6	condition2_male	1	0	1	1	0	1
7	condition2_female	1	0	1	-1	0	-1
8	condition2_female	1	0	1	-1	0	-1
9	condition3_male	1	-1	-1	1	-1	-1
10	condition3_male	1	-1	-1	1	-1	-1
11	condition3_female	1	-1	-1	-1	1	1
12	condition3_female	1	-1	-1	-1	1	1
contrast	for condition	0	1	1	0	0	0
	for gender	0	0	0	1	0	0
	for interaction	0	0	0	0	1	1

  I wonder if the above design matrix and contrast are correct?