Psychomotor agitation involves1) pacing.2) fidgeting.3) wringing hands.4) all of the above.

4. all of the above

Explanation:

Persons suffering psychomotor agitation are used to engage on movements without intentional purpose like pacing, fidgeting or wringing of hands. Are usual symptoms of psicological disorders like anxiety, manias or bipolar disorder. In some cases this condition lead to unintentionally self-injuries.

answer; when one group has an extremely high score at pretest;