1.   High-pressure researchers are now using the anvil and the cannon to search for signs of these internal changes.

2.   However, for various reasons, many researchers often use other protocols that do not comply with the model.

3.   In effect the researcher uses the null form in order to neutralize his own bias regarding outcome.

4.   Instead, they are housed in storerooms in museums to be used by researchers.

5.   Other researchers use less strict criteria and claim to find competence where Piagetians, using their criterion, do not.

6.   Researchers often use questionnaires in their work.

7.   Researchers use the Internet for a variety of applications.

8.   This time the researchers used a more methodical approach to the problem.

9.   Other researchers have used computer vision systems to observe the road.

10.   Other researchers have used different labels to describe the same distinction, for example, control, manoeuvring and strategical levels.