Also a new design for MTMM experiments was developed in order to reduce the number of repetitions of the same questions in cooperation with Albert Satorra and Germa Coenders .
A new design is the Split - ballot MTMM design .
Also a new design , The Split - ballot MTMM design , for MTMM experiments was developed in order to reduce the number of repetitions of the same questions in cooperation with Albert Satorra and Germa Coenders .