The groups differed in the treatment given to the third stimulus, A (a noise).

The groups did not differ in their card-sorting times on the other task.

But the groups differ in their approaches and what they require of manufacturers.

Other 12-step groups differ in their approach to the treatment of addiction and recovery.

Patients' groups differed sharply in their reaction to the studies released yesterday.

This group differed among themselves about how much further reformation was necessary.

The two groups did not differ when they could see their hands.

The two groups differ on the source of the gas.

The two groups differed on many issues, such as the role of the Republic, but were able to keep organizational unity.

This is indeed normal in a large group, and I am sure that other groups differ but little.